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Congruent triangles and SSS | Congruence | Geometry | Khan Academy
 
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What it means for triangles to be congruent Watch the next lesson: https://www.khanacademy.org/math/geometry/congruent-triangles/cong_triangle/v/sss-to-show-a-radius-is-perpendicular-to-a-chord-that-it-bisects?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Missed the previous lesson? https://www.khanacademy.org/math/geometry/congruent-triangles/transformations-congruence/v/another-example-of-rigid-transformations-for-congruence?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Geometry on Khan Academy: We are surrounded by space. And that space contains lots of things. And these things have shapes. In geometry we are concerned with the nature of these shapes, how we define them, and what they teach us about the world at large--from math to architecture to biology to astronomy (and everything in between). Learning geometry is about more than just taking your medicine ("It's good for you!"), it's at the core of everything that exists--including you. Having said all that, some of the specific topics we'll cover include angles, intersecting lines, right triangles, perimeter, area, volume, circles, triangles, quadrilaterals, analytic geometry, and geometric constructions. Wow. That's a lot. To summarize: it's difficult to imagine any area of math that is more widely used than geometry. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Geometry channel: https://www.youtube.com/channel/UCD3OtKxPRUFw8kzYlhJXa1Q?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Просмотров: 411345 Khan Academy
Triangle Congruency and Constructions
 
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Triangle Congruency and Constructions: SAS, SSS, ASA. Write, share, and store your lesson plans at http://lesson-connect.com .
Просмотров: 123 Aaron Kennedy
Maths Congruence of Triangles part 1 (Introduction) CBSE Class 7  Mathematics VII
 
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Maths Congruence of Triangles part 1 (Introduction) CBSE Class 7 Mathematics VII
Просмотров: 42191 ExamFear Education
Geometry - Proofs for Triangles
 
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Proofs give students much trouble, so let's give them some trouble back! In this lesson we cover the four main methods of proving triangles congruent, including SSS, SAS, ASA, and AAS. We cover CPCTC as well. In the two proofs covered, one involves parallel lines and the other triangles back to back, using the reflexive property. YAY MATH! Please visit yaymath.org Videos copyright (c) Yay Math
Просмотров: 280813 yaymath
Congruent triangles-Geometry Help
 
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Geometry Teachers Never Spend Time Trying to Find Materials for Your Lessons Again! Join Our Geometry Teacher Community Today! http://geometrycoach.com/Geometry-Lesson-Plans/?pa=MOOMOOMATH http://www.moomoomath.com/Proving-triangles-congruent.html Introduction to congruent triangles. This video explains five methods for proving that triangles are congruent. The five methods for triangle congruence are SSS Side Side Side SAS Side Angle Side ASA Angle Side Angle AAS Angle Angle Side HL Hypotenuse Leg In addition each method has several examples and explains why the triangles are congruent along with tips and guidance from a veteran Geometry teacher. You may also enjoy…. ASA Proof https://www.youtube.com/watch?v=sxQqCFKNy5U Angle side Angle with congruent triangles https://www.youtube.com/watch?v=rlbwHBqu3tg Congruent Triangles https://www.youtube.com/watch?v=eWfEXKmNCkY Hypotenuse/Angle Side Angle https://www.youtube.com/watch?v=5ZNAQ5Enx8I Khan Academy Congruent Triangles -~-~~-~~~-~~-~- Please watch: "Study Skills Teacher's Secret Guide to your Best Grades" https://www.youtube.com/watch?v=f3bsg8gaSbw -~-~~-~~~-~~-~-
Просмотров: 1617 MooMoo Math and Science
✶ DIFFERENCE BETWEEN SIMILAR & CONGRUENT FIGURES?
 
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Let's explore the difference between similar and congruent figures (similarity vs. congruence) in this conceptual mini-lesson. ★ Want more FREE weekly math videos? Subscribe Now: http://bit.ly/1OVJnyh ★★ Why Math? Download YOUR Free eBook and sign-up for our FREE weekly newsletter: http://www.mashupmath.com/resources/ ★★★ Learn More About Anthony: http://bit.ly/1KQ1Td3 Learning Standards (8th Grade Geometry): Understand congruence and similarity using physical models, transparencies, or geometry software. 8.G.A.4 Understand that a two-dimensional figure is similar to another if the second can be obtained from the first by a sequence of rotations, reflections, translations, and dilations; given two similar two-dimensional figures, describe a sequence that exhibits the similarity between them. What does it mean when two figures are similar? What does it mean when two figures are congruent? What is the difference between similarity and conrguence? Image Credit: Emojis provided free by http://emojione.com Our lessons are perfect for flipped classroom math teachers and students. This lesson is aligned with the common core learning standards for math and the SAT math curriculum as well. MashUp Math is a great free resource for math students, parents, and teachers. Our lessons are a great resource for struggling students, flipped classroom educators, and homeschool math students. ✔✔✔SUBSCRIBE FOR FREE: https://www.youtube.com/channel/UCtBt... ✔✔JOIN OUR MAILING LIST: http://bit.ly/1TqV94V ✔FOLLOW US ON TWITTER: http://www.twitter.com/mashupmath ✔FOLLOW US ON INSTAGRAM: http://www.instagram.com/mashupmath ✔FOLLOW US ON PINTEREST: http://www.pinterest.com/mashupmath ✔LIKE US ON FACEBOOK: http://www.facebook.com/mashupmath Our Mission: MashUp Math is our creative solution to reviving students' passion and interest for learning mathematics. As young educators, we know that all students learn math differently and that a one-size-fits-all approach is simply ineffective. The idea that the ability to understand mathematics is reserved for a select few did not sit well with us. In addition to sharing free teacher resources (which are teacher created resources) in the form of teacher worksheets, we share new YouTube math videos every week that help math teachers and students to better understand mathematics and the common core. Our lessons can be aligned with the common core standards for common core math and are immensely popular with flipped learning educators and anyone experimenting with flipped classroom learning. As educators, we know what it takes to be a super math teacher and that we can’t always do it alone. In addition to our cool math videos, we share articles, blogs, inspirational quotes, teacher math worksheets, and math worksheets. Whether you teach in the flipped classroom, operate in blended education or online blended learning, or are interested in finding cool math online, MashUp Math will have something for you! Many students think of us as a math tutor online or as their on-demand online tutor. Others trust us for all things related to online math education—coming to use when they find themselves thinking “I don’t understand my homework assignment! and need some homework help! It is also a part of our mission to make progressive steps in mathematics education. For one, our content is created with the goal of moving students from a fixed mindset to a growth mindset. We also aim to meet the unique needs of ESL math students and support math for girls as well. Many of our users serve as a special education teacher and use our cool videos to support their special education students with special needs. Our free online math lessons are also high adaptable to your homeschool curriculum and should be added to your list of free homeschool resources. We are also very involved in the edtech world and are very popular with Google Classroom educators, Math Games Classroom Educators, and teachers who support the use of iPad for education! So if you could use some help with everyday math and are a student with a unique learning style or learning styles—like Visual Auditory Learning! Or if you’re tired of math games and are more interested in an easy-to-follow tutorial, check us out and learn math with us. No matter your school’s standards of learning, our YouTube Math Videos Lessons will work for you!
Просмотров: 49896 MashUp Math
Congruent Triangles
 
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lesson plan for teaching congruent triangles
Просмотров: 1363 fsu6305casnyder
Congruent and non Congruent Figures math lesson. Geometry math lesson for kids
 
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http://www.kidsmathtv.com. What are congruent and non congruent figures ? Teach kids about congruency and geometry in this math video. Suitable 2nd, 3rd and 4th grade math lesson.
Просмотров: 16045 Kisi KidsMathTV
Triangles and its Properties || 7th Class Mathematics (2018)
 
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Click this link for eduzon Mobile App from Google Play Store: https://play.google.com/store/apps/details?id=com.app.eduzonin For full video lessons visit our Website : http://www.eduzon.in/ For Subscribe: https://www.youtube.com/c/eduzonin?sub_confirmation=1 Facebook :https://www.facebook.com/onlinestudyeez You tube channel: https://www.youtube.com/c/eduzonin Our Youtube Channel(eduzon.in) is Publishing..... 10th(Tenth) class phyical science/ 10th class social studies/ 10th class mathematics/ 10th class telugu/ 9th(Nine) class phyical science/ 9th class social studies/ 9th class mathematics/ 9th class telugu/ 8th(Eight) class phyical science/ 8th class social studies/ 8th class mathematics/ 8th class telugu/ 7th class phyical science/ 7(Seven)th class social studies/ 7th class mathematics/ 7th class telugu/ 6th class phyical science/ 6th class social studies/ 6(Six)th class mathematics/ 6th class telugu/ cce pattern, cbse syllabus/ online lessons/ online education courses...Thanks for Watching....Keep it up & Subscribe to our Channel eduzon.in
Просмотров: 79971 eduzon.in
Teacher Idea for Triangle Congruence Postulates
 
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Interactive Notetaking
Просмотров: 16402 Melissa Bennett
Math Antics - Angle Basics
 
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Learn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!
Просмотров: 1160273 mathantics
Area of Triangle using "Side Angle Side"-Geometry Help
 
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Geometry Teachers Never Spend Time Trying to Find Materials for Your Lessons Again! Join Our Geometry Teacher Community Today! http://geometrycoach.com/Geometry-Lesson-Plans/?pa=MOOMOOMATH How to use side angle side in order to find the area of a triangle. If you have a triangle with a side of 9 and a side of 15 along with an angle of 110 degrees you can use side angle side "SAS" in order to find the area. The formula you would use is 1/2*side*side * sin of the angle Questions answered with this video.. When would you use "SAS" side angle side to find area? If a triangle has side lengths of 9 and 15 units how do you find the area? What is an included angle? How do you find sine on a calculator? You may also enjoy….. Area of Triangle https://www.youtube.com/watch?v=Dt5fi89gA-0 Triangle Area https://www.youtube.com/watch?v=xz6gBA0M9FY * Check out my site MooMooMath http://www.moomoomath.com/ * Subscribe https://www.youtube.com/cha... * Google+ https://plus.google.com/u/0... -~-~~-~~~-~~-~- Please watch: "Study Skills Teacher's Secret Guide to your Best Grades" https://www.youtube.com/watch?v=f3bsg8gaSbw -~-~~-~~~-~~-~-
Просмотров: 122 MooMoo Math and Science
Ruffa teaching demo-triangle
 
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Demo about triangle and it's angle.
Просмотров: 181 ivanerie
Grade 5 Math #11.2, Equilateral, Isosceles, Scalene, Right, Obtuse, Acute Triangles
 
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Learn about congruent sides and angles of triangles, their differences and likenesses. Learn how to identify them, what the little marks and arcs on them stand for, even what the word triangle actually means. #11.2
Просмотров: 6903 JoAnn's School
Triangle Congruence SSS Proof-Geometry Help-MooMooMath
 
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Geometry Teachers Never Spend Time Trying to Find Materials for Your Lessons Again! Join Our Geometry Teacher Community Today! http://geometrycoach.com/Geometry-Lesson-Plans/?pa=MOOMOOMATH Prove △ABD≌ △CBD Video explains how to prove that these two triangle are congruent by using Side Side Side ( SSS) Each statement of the theorem is explained. Common Core Standard G.CO.8 You may also enjoy…. ASA Proof https://www.youtube.com/watch?v=sxQqCFKNy5U Angle side Angle with congruent triangles https://www.youtube.com/watch?v=rlbwHBqu3tg Congruent Triangles https://www.youtube.com/watch?v=eWfEXKmNCkY Hypotenuse/Angle Side Angle https://www.youtube.com/watch?v=5ZNAQ5Enx8I Khan Academy Congruent Triangles -~-~~-~~~-~~-~- Please watch: "Study Skills Teacher's Secret Guide to your Best Grades" https://www.youtube.com/watch?v=f3bsg8gaSbw -~-~~-~~~-~~-~-
Просмотров: 2875 MooMoo Math and Science
When to use angle side angle with congruent triangles-Geometry Help
 
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Geometry Teachers Never Spend Time Trying to Find Materials for Your Lessons Again! Join Our Geometry Teacher Community Today! http://geometrycoach.com/Geometry-Lesson-Plans/?pa=MOOMOOMATH http://www.moomoomath.com/angle-side-angle.html Video outlines when to use angle side angle when proving that triangles are congruent. Several examples problems are worked out. You may also enjoy…. ASA Proof https://www.youtube.com/watch?v=sxQqCFKNy5U Angle side Angle with congruent triangles https://www.youtube.com/watch?v=rlbwHBqu3tg Congruent Triangles https://www.youtube.com/watch?v=eWfEXKmNCkY Hypotenuse/Angle Side Angle https://www.youtube.com/watch?v=5ZNAQ5Enx8I Khan Academy Congruent Triangles -~-~~-~~~-~~-~- Please watch: "Study Skills Teacher's Secret Guide to your Best Grades" https://www.youtube.com/watch?v=f3bsg8gaSbw -~-~~-~~~-~~-~-
Просмотров: 250 MooMoo Math and Science
How to Teach Congruent Figures to Students : Math Lessons & Tips
 
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Subscribe Now: http://www.youtube.com/subscription_center?add_user=ehoweducation Watch More: http://www.youtube.com/ehoweducation Congruent figures are first taught to students in basic form at the elementary level. Teach congruent figures to students with help from an experienced mathematics educator in this free video clip. Expert: Marija Kero Filmmaker: Victor Varnado Series Description: A lot of mathematics problems can be boiled down to their essential concepts, thus making them significantly easier to solve. Get tips on fun math problems with help from an experienced mathematics educator in this free video series.
Просмотров: 1746 eHowEducation
Lesson 1 2D shapes bonus video on triangles
 
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A short lesson on classifying different types of triangle.
Просмотров: 124 Mr Chapman
Congruence and similarity — Basic example | Math | New SAT | Khan Academy
 
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Watch Sal work through a basic Congruence and similarity problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s6-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the previous lesson? https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s2-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT New SAT (starting March 2016) on Khan Academy: Practice all of the skills you’ll need for the new SAT. We also have four official practice exams from College Board. The October 2015 PSAT is in the style of the new SAT. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to KhanAcademy’s New SAT channel: https://www.youtube.com/channel/UCb6Pzsn8oIFv1N8eGem570A?sub_confirmation=1 Subscribe to KhanAcademy: https://www.youtube.com/subscription_center?add_user=khanacademy
Просмотров: 126909 Khan Academy
SAS Triangle Congruence: Lesson (Basic Geometry Concepts)
 
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Discover more at www.ck12.org: http://www.ck12.org/geometry/SAS-Triangle-Congruence/ Here you'll learn how to prove that triangles are congruent given information only about two of their sides and the angle between those two sides. This video provides the student with a walkthrough on SAS triangle congruence. This is part of CK-12’s Basic Geometry: Triangles and Congruence. See more at: 1. Triangle Sum Theorem: http://www.ck12.org/geometry/Triangle-Sum-Theorem/ 2. Exterior Angles Theorems: http://www.ck12.org/geometry/Exterior-Angles-Theorems/ 3. Congruent Triangles: http://www.ck12.org/geometry/Congruent-Triangles/ 4. Congruence Statements: http://www.ck12.org/geometry/Congruence-Statements/ 5. Third Angle Theorem: http://www.ck12.org/geometry/Third-Angle-Theorem/ 6. SSS Triangle Congruence: http://www.ck12.org/geometry/SSS-Triangle-Congruence/ 7. SAS Triangle Congruence: http://www.ck12.org/geometry/SAS-Triangle-Congruence/ 8. ASA and AAS Triangle Congruence: http://www.ck12.org/geometry/ASA-and-AAS-Triangle-Congruence/ 9. HL Triangle Congruence: http://www.ck12.org/geometry/HL-Triangle-Congruence/ 10. Isosceles Triangles: http://www.ck12.org/geometry/Isosceles-Triangles/ 11. Equilateral Triangles: http://www.ck12.org/geometry/Equilateral-Triangles/ Watch the whole series of CK-12's Basic Geometry videos: https://www.youtube.com/playlist?list=PLhWx3LZhlpseSm7selpF8lEq_jtiOqpDX
Просмотров: 1035 CK-12 Foundation
Mr. Bell lesson on congruent triangles
 
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College Prep Geometry. Lesson on congruent triangles.
Просмотров: 13 Corey Bell
Classifying triangles by their sides and angles
 
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We classify a bunch of triangles as either acute, right, or obtuse (classification by angles), and as either scalene, isosceles, or equilateral (classification by sides). Then we tackle two drawing problems that concern triangles. Drawing is at the heart of what geometry is all about and it is both a hands-on activity, which students like, and also requires geometric reasoning about the attributes. This lesson is meant for 5th grade and onward. Check out also my free books and worksheets at http://www.mathmammoth.com/free
Просмотров: 1324 Math Mammoth
Geometry Lesson Plans - MathHelp.com - 1000+ Online Math Lessons
 
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MathHelp.com - http://www.MathHelp.com - offers a comprehensive library of geometry lesson plans featuring a personal geometry teacher inside every lesson!
Просмотров: 7568 MathHelp.com
SSS postulate-Geometry Help
 
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Geometry Teachers Never Spend Time Trying to Find Materials for Your Lessons Again! Join Our Geometry Teacher Community Today! http://geometrycoach.com/Geometry-Lesson-Plans/?pa=MOOMOOMATH The video looks at three pairs of triangles and demonstrates how the triangles are congruent using Side Side Side postulate. Common Core Standard G.CO.8 00:12 Explains and demonstrates what a SSS triangle looks like 00:25 Compares two congruent triangles by looking at the triangle markings and list the congruent sides 01:16 Looks at another pair of congruent triangles and shows how the triangles are congruent by listing which three sides are congruent. 02:47 Proves two triangles are congruent using SSS You may also enjoy…. ASA Proof https://www.youtube.com/watch?v=sxQqCFKNy5U Angle side Angle with congruent triangles https://www.youtube.com/watch?v=rlbwHBqu3tg Congruent Triangles https://www.youtube.com/watch?v=eWfEXKmNCkY Hypotenuse/Angle Side Angle https://www.youtube.com/watch?v=5ZNAQ5Enx8I Khan Academy Congruent Triangles -~-~~-~~~-~~-~- Please watch: "Study Skills Teacher's Secret Guide to your Best Grades" https://www.youtube.com/watch?v=f3bsg8gaSbw -~-~~-~~~-~~-~-
Просмотров: 6970 MooMoo Math and Science
Similar Triangles
 
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Geometry Teachers Never Spend Time Trying to Find Materials for Your Lessons Again! Join Our Geometry Teacher Community Today! http://geometrycoach.com/Geometry-Lesson-Plans/?pa=MOOMOOMATH Properties of similar triangles Triangles are similar if they have the same shape,but not necessarily the same size. Properties of similar triangles The corresponding angles are the same The corresponding sides are in proportion We can prove triangles are similar by: Angle Angle ( two angles congruent to two angles of another triangle) Side Side Side ( ll three sides in proportion to all three sides of another vtriangle) Side Angle Side ( two proportional sides with congruent angle in between) The video "Similar Properties" reviews these properties and provides examles. -~-~~-~~~-~~-~- Please watch: "Study Skills Teacher's Secret Guide to your Best Grades" https://www.youtube.com/watch?v=f3bsg8gaSbw -~-~~-~~~-~~-~-
Просмотров: 42 MooMoo Math and Science
Similarity and Congruency
 
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Lesson Plan 1351
Просмотров: 41 folmer5156
Teacher Toolkit: Triangle Circle Square (Secondary)
 
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http://www.theteachertoolkit.com/ See Leticia Garza, middle school math teacher, using Triangle Square Circle to assess her students' learning at the end of class. This strategy encourages students to reflect on their learning and process information presented in the lesson. Similar to other closing strategies, it asks students to pick out important pieces of information and to question anything they don’t completely understand. As a teacher, it is a tool that will be used to gauge understanding and determine if anything needs to be re-addressed in future lessons. Find more tips and videos at: www.theteachertoolkit.com
Просмотров: 831 ESC Region 13
What are  triangle inequalities ?
 
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Geometry Teachers Never Spend Time Trying to Find Materials for Your Lessons Again! Join Our Geometry Teacher Community Today! http://geometrycoach.com/Geometry-Lesson-Plans/?pa=MOOMOOMATH Triangle inequalities help define triangles and state that the sum of any two sides of a triangle must be greater than the third side, For a summary of the video and a practice link go to http://moomoomath.com -~-~~-~~~-~~-~- Please watch: "Study Skills Teacher's Secret Guide to your Best Grades" https://www.youtube.com/watch?v=f3bsg8gaSbw -~-~~-~~~-~~-~-
Просмотров: 325 MooMoo Math and Science
Congruent Shapes - Math Lesson for 2nd Graders
 
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Play this video lesson to teach Grade 2 kids - "Congruent Shapes", figures that have the same size and shape.
Просмотров: 22804 Turtlediary
What is an Isosceles triangle?
 
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Geometry Teachers Never Spend Time Trying to Find Materials for Your Lessons Again! Join Our Geometry Teacher Community Today! http://geometrycoach.com/Geometry-Lesson-Plans/?pa=MOOMOOMATH http://moomoomath.com http://www.moomoomath.com/Isosceles.html In this video you will learn.. Isosceles triangle definition that two sides are congruent that two angles of an isosceles triangle are congruent You may also enjoy… Isosceles Triangle Theorem https://www.youtube.com/watch?v=Tqh7RGWd480 What is an Isosceles Triangle https://www.youtube.com/watch?v=PZR8Xv6OJR0 -~-~~-~~~-~~-~- Please watch: "Study Skills Teacher's Secret Guide to your Best Grades" https://www.youtube.com/watch?v=f3bsg8gaSbw -~-~~-~~~-~~-~-
Просмотров: 16257 MooMoo Math and Science
Congruence Triangles in Hindi (समरूपता)
 
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Mr Rakesh Thakur has 22 years experience in teaching.At present Mr Rakesh Thakur is Adhyapak (Mathematics) in Govt Girl's Higher Secondary School Nainpur District Mandla Madhya-Pradesh. He is Samvida Grade-1 & Samvida Grade-3 Examination qualified. He has MSc(Maths), MA(Economics), BEd, & PGDCA.
Просмотров: 192 GA study
Math 1351-Congruent Shapes Part Two
 
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Просмотров: 256 BriannaFarias
Free SAT Math Lessons: Congruent Triangles
 
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In this video, you will learn how to solve the most common SAT congruent triangle problems. The video also includes practice problems for you to solve along with complete solutions.
Просмотров: 28 Jessica Ramer
Geometry 9.7: Congruent triangles
 
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This video forms part of the OLICO Youth Mathematics programme, which can be found at www.learn.olico.org. Lesson code: Grade 9 Geometry 7 Website: olico.org Facebook: www.facebook.com/olicoyouth Twitter: twitter.com/olicoyouth This video is published under the Creative Commons Attribution-NonCommercial 3.0 Unported License (CC BY-NC) and you are free to use it for non-commercial purposes.
Просмотров: 317 olicoTV
Introduction - Triangles Class 9th Maths
 
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Triangles - Solution for Class 9th mathematics, NCERT & R.D Sharma solutions for Class 9th Maths. Get Textbook solutions for maths from evidyarthi.in
Просмотров: 103283 Mathematics Class IX
Vertex angle of an Isosceles Triangle-Geometry Help
 
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Geometry Teachers Never Spend Time Trying to Find Materials for Your Lessons Again! Join Our Geometry Teacher Community Today! http://geometrycoach.com/Geometry-Lesson-Plans/?pa=MOOMOOMATH The vertex angle of an isosceles triangle is the non congruent angle and is opposite the base The video describes the vertex angle and works two sample problems What are the measure of the base angles given a vertex angle of 110 degrees? What is the measure of the vertex angle given a base angle of 70 degrees? You may also enjoy… Isosceles Triangle Theorem/Your Teacher-Math Help https://www.youtube.com/watch?v=Tqh7RGWd480 What is an Isosceles Triangle https://www.youtube.com/watch?v=PZR8Xv6OJR0 Constructing an Isosceles Triangle, Given a Vertex and Midsegment https://www.youtube.com/watch?v=OH7ljH9BUJ4 Isosceles Triangle-6th Grade Math http://www.moomoomath.com/Isosceles.html -~-~~-~~~-~~-~- Please watch: "Study Skills Teacher's Secret Guide to your Best Grades" https://www.youtube.com/watch?v=f3bsg8gaSbw -~-~~-~~~-~~-~-
Просмотров: 12892 MooMoo Math and Science
Math Video Definitions-Cevian-Geometry
 
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Geometry Teachers Never Spend Time Trying to Find Materials for Your Lessons Again! Join Our Geometry Teacher Community Today! http://geometrycoach.com/Geometry-Lesson-Plans/?pa=MOOMOOMATH Math Video Definitions Cevian in Geometry-- A Cevian is a line, line segment, or ray with one end point on the vertex of a triangle, and the other end point on the opposite side of the triangle. Common examples include the altitude of a triangle, angle bisectors, and medians. -~-~~-~~~-~~-~- Please watch: "Study Skills Teacher's Secret Guide to your Best Grades" https://www.youtube.com/watch?v=f3bsg8gaSbw -~-~~-~~~-~~-~-
Просмотров: 403 MooMoo Math and Science
Properties of a rhombus, rectangle, and a square
 
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Geometry Teachers Never Spend Time Trying to Find Materials for Your Lessons Again! Join Our Geometry Teacher Community Today! http://geometrycoach.com/Geometry-Lesson-Plans/?pa=MOOMOOMATH Properties of a rhombus,rectangle, and a square A rhombus,rectangle, and square are all polygons. In addition each of these are quadrilaterals, which mean they have 4 sides. A rhombus is a quadrilateral with 4 equal sides. A rhombus is most commonly recognized as a diamond, but they are not limited to this shape. Let's take a look at 14 properties of a rhombus. A Rhombus is a Quadrilateral, which means it has four sides, and the sides of a rhombus are congruent. The opposite sides of a rhombus are parallel. The opposite angles of a Rhombus are congruent. The diagonals of a rhombus are perpendicular. The diagonals of a Rhombus create form four congruent interior triangles. The diagonals of a rhombus bisect each other which means they cut each other in half. A rectangle has opposite sides that are congruent. in addition a rectangle has 4 right angles, and diagonals that are equal. A rectangle is part of the quadrilateral family. A rectangle is a plane shape with 4 sides. In addition, it has several other properties A rectangle is a 4 sided polygon, with opposite sides being parallel. In addition, a rectangle has 4 right angles and the sum of the interior angles add to 360 degrees. The diagonals of a rectangle are equal length The diagonals bisect and create two equal triangles. Opposite sides are equal and parallel All squares are rectangles, but not all rectangles are squares. A square is also a quadrilateral with four equal sides plus four right angles. The diagonals of a square bisect one another, plus bisect opposite angles which creates two angles of 45 degrees. A square is a plane shape that is a quadrilateral that is 2D so it has length and width but not height. A square has 4 congruent sides 4 equal sides. Along with these 4 sides a square has 4 right angles The diagonals are perpendicular and create 4 right angles. The diagonals bisect each other. The diagonals of a square also bisect opposite angles and create equal 45 degree angles. The diagonals create congruent triangles Triangle ABC is congruent to ACD A square can be considered a rhombus with four right angles or a square with 4 equal sides. Rhombus properties| Quadrilateral Properties| Properties of Parallelograms | Square Rhombus | Rhombus Definition | Rectangle Definition | -~-~~-~~~-~~-~- Please watch: "Study Skills Teacher's Secret Guide to your Best Grades" https://www.youtube.com/watch?v=f3bsg8gaSbw -~-~~-~~~-~~-~-
Просмотров: 87771 MooMoo Math and Science
Perimeter and area: the basics | Perimeter, area, and volume | Geometry | Khan Academy
 
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Great geometry primer on perimeter and area. Listen carefully. Sal explains the concepts so you'll understand them. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/basic-geometry/perimeter_area_tutorial/e/area_of_triangles_1?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson: https://www.khanacademy.org/math/geometry/basic-geometry/perimeter_area_tutorial/v/triangle-area-proofs?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Missed the previous lesson? https://www.khanacademy.org/math/geometry/right_triangles_topic/cc-geometry-trig-similarity/v/example-relating-trig-function-to-side-ratios?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Geometry on Khan Academy: We are surrounded by space. And that space contains lots of things. And these things have shapes. In geometry we are concerned with the nature of these shapes, how we define them, and what they teach us about the world at large--from math to architecture to biology to astronomy (and everything in between). Learning geometry is about more than just taking your medicine ("It's good for you!"), it's at the core of everything that exists--including you. Having said all that, some of the specific topics we'll cover include angles, intersecting lines, right triangles, perimeter, area, volume, circles, triangles, quadrilaterals, analytic geometry, and geometric constructions. Wow. That's a lot. To summarize: it's difficult to imagine any area of math that is more widely used than geometry. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Geometry channel: https://www.youtube.com/channel/UCD3OtKxPRUFw8kzYlhJXa1Q?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Просмотров: 1252207 Khan Academy
What are special right triangles?
 
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Geometry Teachers Never Spend Time Trying to Find Materials for Your Lessons Again! Join Our Geometry Teacher Community Today! http://geometrycoach.com/Geometry-Lesson-Plans/?pa=MOOMOOMATH http://www.moomoomath.com/Special-Right-triangles.html Special right triangles are triangles that have regular patterns that makes calculations of the triangle easier. Two common special right triangles, are the 30-60-90 triangle and the 45-45-90 triangle Transcript Special Right Triangles Hi welcome to MooMooMath. Today we are going to look at two type's special right triangles. The first type is 30-60=90 triangles and the second type is the 45-45-90 type triangle. Something special about the 30-60-90 triangle is that all three angles are different therefore all three sides are different, so this triangle is scalene because all three sides are different. So let's draw a 30-60=90 triangle. So if this is my triangle the smallest is this 30 degree angle and this other acute angle would be my 60 degree angle and of course my right angle would be my 90 degree angle. Now opposite my smallest angle is the shortest leg, the longer leg is opposite 60 degree angle and the right angle is always opposite the hypotenuse. So that's how you would label it. So go ahead and label the short, long leg, and the hypotenuse. Now on a 45-45-90 notice you have two angles that are congruent, therefore we have an isosceles triangle which is a triangle with two sides that are the same length and these two angles are my 45 degree angles. So this angle is 45 and this angle is 45. Since these two angles are congruent the legs will be congruent. So these are my two legs. Leg 1 and leg 2 and this is my hypotenuse because it is opposite the 90 degree angle and it is the longest side in a right triangle. So I hope this video of right triangle was helpful, we have two other videos, one which focuses on solving for 30-60-90 triangle and another that solves for 45-45-90 degree triangles. .For a summary of the video and a practice link go to http://moomoomath.com You may also enjoy… Special right triangles in Geometry 30-60-90 45-45-90 https://www.youtube.com/watch?v=nVTtSE5nv7c Special Right Triangle Explanation https://www.youtube.com/watch?v=nVTtSE5nv7c Special right triangles https://www.youtube.com/watch?v=nVTtSE5nv7c -~-~~-~~~-~~-~- Please watch: "Study Skills Teacher's Secret Guide to your Best Grades" https://www.youtube.com/watch?v=f3bsg8gaSbw -~-~~-~~~-~~-~-
Просмотров: 596 MooMoo Math and Science
Geometry: Lines & Angles Songs For Kids | 3rd Grade - 5th Grade
 
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🍎 Enjoy our growing library of math videos at https://www.numberock.com 🍎 Lesson Plan and Materials Below: 🍎 Check our our Geometry Unit Lesson Plans ▶ https://www.teacherspayteachers.com/Product/Geometry-Unit-2459996 🍎 🍎 Get all our ad-free videos,, games, posters, lesson materials & more! ▶ https://www.teacherspayteachers.com/Product/NUMBEROCK-Geometric-Shapes-Song-For-Children-The-Complete-Library-2200780 🍎 »»-------------¤-------------««»»-------------¤-------------«« Numberock Songs for: 3rd Grade - 5th Grade Elementary School Math UK Equivalent Year 4 - Year 6 KS2 Maths »»-------------¤-------------««»»-------------¤-------------«« What/Who is NUMBEROCK? We make animated math videos and educational songs for kids that bring joy back into math class and make it cool again! Up until today, we have created nearly 30 animated music videos that cover mathematical concepts for 3rd Grade, 4th Grade, and 5th Grade; concepts like, Rounding Numbers, Ordering Decimals, Subtraction, 3D Shapes, Types of Angles and much more! We're curious to see how our teaching resource will be used now that we have shared them with a broader audience. Thanks for your interest. How did NUMBEROCK begin? When you look at the entertainment that’s being produced for kids in games and movies, it’s no wonder that kids are starting to zone out in school. During the last 7 years as an elementary public school teacher, I’ve always tried to find new ways to capture my students’ full attention, especially for that one subject that gets such a notoriously bad rap in elementary school – math. One day I brought my guitar in to school to play a song I’d written about Long Division that was accompanied by some simple animations I’d made. While not all my students liked the folk rock genre, I could tell I had everyone’s attention. Soon I began writing songs in genres that my students actually listened to: rap, rock, pop, country, you name it. Parents would tell me that their kids were singing the songs in the car, at dinner, even teaching them to their siblings. Almost in disbelief that kids were singing my math songs for fun outside of school, I felt encouraged and inspired to keep writing. Then, three years ago, I had one of those ‘AHA!’ moments: to write a song with a simple animation for every math concept I had to teach. Altogether, from 2008 to now, I’ve written songs for nearly 50 concepts, 30 of which are now professionally animated. Lesson materials to help maximize learning for those 30 songs are available at "Teachers Pay Teachers", a website where teachers, homeschoolers, and parents can buy high quality learning materials. I hope your student(s) will find a renewed passion for math as they access the NUMBEROCK method.
Просмотров: 253183 NUMBEROCK Math Songs
Similar triangle basics | Similarity | Geometry | Khan Academy
 
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Introduction to what it means for triangles to be similar Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/similarity/triangle_similarlity/e/similar_triangles_1?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson: https://www.khanacademy.org/math/geometry/similarity/triangle_similarlity/v/similarity-postulates?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Missed the previous lesson? https://www.khanacademy.org/math/geometry/similarity/similarity-and-transformations/v/quadrilateral-similarity-by-showing-congruent-angles?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Geometry on Khan Academy: We are surrounded by space. And that space contains lots of things. And these things have shapes. In geometry we are concerned with the nature of these shapes, how we define them, and what they teach us about the world at large--from math to architecture to biology to astronomy (and everything in between). Learning geometry is about more than just taking your medicine ("It's good for you!"), it's at the core of everything that exists--including you. Having said all that, some of the specific topics we'll cover include angles, intersecting lines, right triangles, perimeter, area, volume, circles, triangles, quadrilaterals, analytic geometry, and geometric constructions. Wow. That's a lot. To summarize: it's difficult to imagine any area of math that is more widely used than geometry. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Geometry channel: https://www.youtube.com/channel/UCD3OtKxPRUFw8kzYlhJXa1Q?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Просмотров: 352125 Khan Academy
Congruent similar triangles planning
 
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Просмотров: 27 Mr. Messner
Triangle Vocabulary- Includes types of triangles and important Triangle Theorems
 
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Geometry Teachers Never Spend Time Trying to Find Materials for Your Lessons Again! Join Our Geometry Teacher Community Today! http://geometrycoach.com/Geometry-Lesson-Plans/?pa=MOOMOOMATH Triangle vocabulary In this video, I review the following triangle vocabulary that is used in Geometry Triangle inequality theorem Median of a triangle orthocenter Exterior angle theorem Angle side relationship Geometric mean Scalene, Isosceles, Equilateral Acute, Right, Obtuse, Equiangular -~-~~-~~~-~~-~- Please watch: "Study Skills Teacher's Secret Guide to your Best Grades" https://www.youtube.com/watch?v=f3bsg8gaSbw -~-~~-~~~-~~-~-
Просмотров: 217 MooMoo Math and Science
SSS SAS HL ASA GSP
 
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Geometer's Sketchpad Activity - SSS, SAS, HL, ASA This is a high school Geometer Sketchpad activity intended to promote understanding of triangle congruent postulates and theorems. This activity requires a full 50 minute class period with students who are already experienced with GSP. Geometer's Sketchpad, GSP, provides dynamic constructions. This activity follows classical constructions on paper. Postulate 19: Side-Side-Side Congruence postulate SSS If three sides of one triangle are congruent to three sides of another triangle, then the two triangles are congruent. POSTULATE 20; Side-Angle-Side (SAS) Congruence Postulate If two sides and the included angle of one triangle are congruent to two sides and the included angle of a second triangle, then the two triangles are congruent. THEOREM 4.5; Hypotenuse-Leg (HL) Congruence Theorem If the hypotenuse and a leg of a right triangle are congruent to the hypotenuse and a leg of a second triangle, then the two triangles are congruent. POSTULATE 21 Angle-Side-Angle (ASA) Congruence Postulate If two angles and the included side of one triangle are congruent to two angles and the includes side of another triangle, then the two triangles are congruent.
Просмотров: 754 Jeffrey Bannish
What is a scalene triangle?
 
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Geometry Teachers Never Spend Time Trying to Find Materials for Your Lessons Again! Join Our Geometry Teacher Community Today! http://geometrycoach.com/Geometry-Lesson-Plans/?pa=MOOMOOMATH http://www.moomoomath.com/Definition-of-Scalene-Triangle.html What is a scalene triangle? Transcript Scalene Triangles Welcome to MooMooMath. Today we are talking about Scalene Triangles. A scalene triangle is one in which all three angles are different. So let's look at two examples. I'm going to mark these triangles 3 inches, 4 inches, and 5 inches. All three sides are different lengths. This triangle over here is marked such that all three sides are the same. The mark on the side represents equal lengths. This is actually an equilateral triangle. Now let's look at a scalene triangle based on angles. You have a forty five degree angle, a forty five degree angle, and a ninety degree angle, and over here you have a 60 degree angle, a 30 degree angle, and a ninety degree angle. So based on angles which of these is a scalene angle? This one here (circles the triangle with 60, 30, 90 degree angles) because all three angles are different or all three sides are different. The other triangle these two angles are the same meaning these two legs are the same so this one is actually what they call an isosceles triangle. So let's look at the rules. The definition is all sides are different lengths and all angles are different measures. So our 3, 4, 5, is our example. Hope this video was helpful. For a summary of the video and a practice link go to http://moomoomath.com -~-~~-~~~-~~-~- Please watch: "Study Skills Teacher's Secret Guide to your Best Grades" https://www.youtube.com/watch?v=f3bsg8gaSbw -~-~~-~~~-~~-~-
Просмотров: 15389 MooMoo Math and Science
2.6 Geometry - Proving Angles Congruent
 
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In this Geometry lesson you will learn about proving angles congruent. You will learn about the Congruent Supplements Theorem, the Congruent Complements Theorem, the Right Angle Congruence Theorem, the Linear Pair Postulate and the Vertical Angles Theorem.
Просмотров: 2782 Math is FUNdamental
Triangles : CBSE Class 10 X  Maths
 
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This is the video of CBSE Class 10 Mathematics - Triangles. Topics covered in this video are as follows- Congruency, Similiarity, Recalling Congruency And Similiarity, Similar Polygons, Thales Theorem- Corollary of Thales Theorem, Converse of Thales Theorem, Concepts of parallelogram, Proof of Thales Theorem, Proof of Converse of Thales Theorem, Criteria for Similiarity of Triangles, Congruent and Similar Triangles- Theorem 1, Theorem 2, Theorem 3, Conclusion of 3 Theorems, Overlaping Triangles, Perimeter Based Questions, Shadow Formation, Similiarity and Thales theorem, Advanced and Miscelleneous Questions, Proofs of Theorems- Theorem 1, Theorem 2, Theorem 3, Area of Similar Triangles- Theorem, Theorem's Proof, Pythagoras Theorem, Converse of Pythagoras Theorem, Proof based questions. Here is a demo of online video lecture. You can watch this complete video on our website Dronstudy OR Call us at - 8287971571
Просмотров: 152858 Dronstudy.com
Trigonometric Lesson 3 part 2 "45 45 90 triangles"-Geometry Help
 
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Geometry Teachers Never Spend Time Trying to Find Materials for Your Lessons Again! Join Our Geometry Teacher Community Today! http://geometrycoach.com/Geometry-Lesson-Plans/?pa=MOOMOOMATH This video has a note taking guide that goes along with it. Click here to download the guide Video Guide Find the area of a square with a diagonal of 6 units. The diagonal cuts the square in half creating two 45 45 90 triangles. The problem involves using the hypotenuse to find the leg length If you need help in trigonometry I have put together a trigonometry unit. This is one video of the trigonometric unit that contains 14 videos, along with a note taking guide for each video, Click here for the table of contents: http://www.moomoomath.com/trigonometry-problems.html You may also enjoy… Special right triangles in Geometry 30-60-90 45-45-90 https://www.youtube.com/watch?v=nVTtSE5nv7c Special Right Triangle Explanation https://www.youtube.com/watch?v=nVTtSE5nv7c Special right triangles https://www.youtube.com/watch?v=nVTtSE5nv7c -~-~~-~~~-~~-~- Please watch: "Study Skills Teacher's Secret Guide to your Best Grades" https://www.youtube.com/watch?v=f3bsg8gaSbw -~-~~-~~~-~~-~-
Просмотров: 103 MooMoo Math and Science