Interactive Notetaking

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Melissa Bennett

Congruence of Triangles - Solution for Class 7th mathematics, NCERT solutions for Class 7th Maths. Get Textbook solutions for maths from evidyarthi.in

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Mathematics Class VII

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

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Khan Academy

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
-~-~~-~~~-~~-~-

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MooMoo Math and Science

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

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yaymath

Triangle Congruency and Constructions: SAS, SSS, ASA.
Write, share, and store your lesson plans at http://lesson-connect.com .

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Aaron Kennedy

Click this link for eduzon Mobile App from Google Play Store: https://play.google.com/store/apps/details?id=com.app.eduzonin
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eduzon.in

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.

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Kisi KidsMathTV

College Prep Geometry.
Lesson on congruent triangles.

Просмотров: 14
Corey Bell

For a complete lesson on proving triangles are congruent, go to http://www.MathHelp.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students learn the following postulates related to congruent triangles and triangle proofs. If the three sides of one triangle are congruent to the three sides of another triangle, then the triangles are congruent (Side-Side-Side or SSS). If two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then the triangles are congruent (Side-Angle-Side or SAS). If two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the triangles are congruent (Angle-Side-Angle or ASA). Students are then asked to determine whether given triangles are congruent, and name the postulate that is used.

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MathHelp.com

Discover more at www.ck12.org: http://www.ck12.org/geometry/Congruent-Triangles/.
Here you'll learn what it means for two triangles to be congruent, and how to find the corresponding parts of congruent triangles.
This video gives more detail about the mathematical principles presented in Congruent Triangles.
This is part of CK-12’s 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 Geometry videos: https://www.youtube.com/playlist?list=PLhWx3LZhlpsfZglz0JcMu7AMqcROsISuG

Просмотров: 852
CK-12 Foundation

WEBSITE: http://www.teachertube.com Pascale Ngo
Grade 9 Geometry
Martin Luther High School Maspeth NY

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TeacherTube Math

Hello Friends, in this Video we will learn about Triangles form from Chapter - 7, Triangles from NCERT Book of Class 9th Mathematics.
Topics covered in this video are:
1) Basics of Triangle
2) Types of Triangle
3) Congruence of Triangles
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The goal of Vidya Vision Institute is empower every student with quality education, especially those who cannot pay the huge coaching fees. Here you can find quality video lectures & NCERT solutions in easy & understandable language. We also conduct live sessions time to time for clearing all the doubts and to develop a better understanding of concepts.
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2) Information in the videos of this channel are sourced from various available sources, through all efforts has been made to make sure it is trustworthy, Vidya Vision Institute shall not be responsible for mistakes if any.
Tags: #NCERT #Class9 #Mathematics

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Vidya Vision Institute

Use congruent triangles to plan and write proofs.
Use congruent triangles to prove constructions are valid.

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Dubel Math

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: 362
olicoTV

This Maths video explains what are similar figures and what is the difference between similar and congruent figures. This video is meant for students studying in class 9 and 10 in CBSE/NCERT and other state boards.
About us: We are a social enterprise working on a mission to make school learning interesting, relevant and affordable to every child on this planet.
You can watch our FREE online videos at http://www.bodhaguru.com/watch and download our practice application/games - just visit http://www.bodhaguru.com/play
If you like our videos, subscribe to our channel http://www.youtube.com/user/BodhaGuruLearning. Feel free to connect with us at http://www.facebook.com/BodhaGuru OR http://twitter.com/Bodhaguru
Have fun, while you learn. Thanks for watching
--
Team BodhaGuru

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Bodhaguru

Introduction to similar triangles
Watch the next lesson: https://www.khanacademy.org/math/geometry/similarity/old_school_similarity/v/similar-triangles-part-2?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry
Missed the previous lesson?
https://www.khanacademy.org/math/geometry/similarity/cc-solving-prob-similar-tri/v/challenging-similarity-problem?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

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Khan Academy

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: 1904
eHowEducation

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.
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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!

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MashUp Math

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: 3209
MooMoo Math and Science

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: 288
MooMoo Math and Science

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: 8810
JoAnn's School

This was video created to teach PASS Geometry Standard 2.5. It won't match the OAS lesson perfectly. There are plans to edit this video to be a better match.

Просмотров: 208
EPICMathCoach

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: 145209
Khan Academy

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: 29
Jessica Ramer

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: 1150
CK-12 Foundation

Definition of Congruent Figures, Applying algebra to Congruent Figures

Просмотров: 265
CoachOats

Play this video lesson to teach Grade 2 kids - "Congruent Shapes", figures that have the same size and shape.

Просмотров: 23819
Turtlediary

Congruence of triangles Class 9 class 7 in simple way and rules to keep in mind, congruent triangle, congruent triangles, SAS,SSS,AAS, RHS,ASA,
Introduction to Congruence of Triangles - CBSE NCERT Class 9, Triangles Maths CBSE class 9,Triangles - CBSE NCERT Class 9,Finding congruent triangles | Congruence | Geometry,

Просмотров: 25866
galaxy coaching classes

Просмотров: 447
Kelly Fifield

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: 7444
MooMoo Math and Science

Classifying Triangles and Triangle sum. ALL ANGLES ADD TO 180!

Просмотров: 316
Rock Ridge Math

Maths Congruence of Triangles part 1 (Introduction) CBSE Class 7 Mathematics VII

Просмотров: 49393
ExamFear Education

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: 291
MooMoo Math and Science

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: 14550
MooMoo Math and Science

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.

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GA study

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Rashmi Kathuria

Triangles - Solution for Class 9th mathematics, NCERT & R.D Sharma solutions for Class 9th Maths. Get Textbook solutions for maths from evidyarthi.in

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Mathematics Class IX

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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
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MooMoo Math and Science

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SAS Method for area of triangle
Video explains how to calculate the area of a triangle using the side angle side method
Use the side angle side method when you know two sides and the included angle
You may also enjoy…..
5 ways to find the area of a triangle
http://www.moomoomath.com/Finding-the-area-of-a-triangle.html
Area Triangle Coordinate Plane
https://www.youtube.com/watch?v=JY_kxkXWc48
Area of an Equilateral Triangle
https://www.youtube.com/watch?v=SYSIaLXKzKk
Area using SAS method
https://www.youtube.com/watch?v=usCptozPkWU
Finding altitude of a triangle
https://www.youtube.com/watch?v=d4YILnTV07E
Area of Triangle
https://www.youtube.com/watch?v=Dt5fi89gA-0
Triangle Area
https://www.youtube.com/watch?v=xz6gBA0M9FY
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MooMoo Math and Science

*The writing is delayed to the sound! Sorry for the inconvenience!*

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Sara Kirsch

सर्वांगसमता एवं समरूप त्रिभुजों के के बारे में संपूर्ण जानकारी तथा प्रॉपर्टीज सर्वांगसम त्रिभुज की एवं समरूप त्रिभुज की।

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BTC/DELED SOLVER amit sir

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http://www.moomoomath.com/Equilateral-Triangle.html
Hi Welcome to MooMooMath. Today we are going to look at Equilateral Triangles. Up here I have two different triangles. The first one we know is equilateral because all three sides are marked congruent. You might see a congruent symbol like that (points to triangle) or you might see that the measure of each side is equal. So there is two ways to show that the different sides are equal. On the second one let's look at it in perspective of the actual measure of the angles. We know that a triangle adds up to 180 degrees. So if we have three equal angles we are going to take that and divide it by three. So 180 divided by three is equal to 60. That means each of these angles have to measure 60 degrees. If the three angles measure 60 then it is an equilateral triangle. So let's look at the rules. The first rule is that all three sides of the triangle are congruent which just means they are equal, and all three angles have to be congruent, which are equal measures. In an equilateral triangle since you have triangle and it always adds to 180 the measure of the angles will always be 60. Hope this video was helpful.
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Review Geometry terms with this crossword puzzle
http://www.moomoomath.com/geometry-terms-crossword-puzzle-answers.html

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MooMoo Math and Science

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http://www.moomoomath.com/angle-side-angle.html
How to use angle side angle to prove that two triangles are congruent.
The video gives step by step directions on how to prove that triangle ABC is congruent to triangle CDA.
When you prove two triangles are congruent using the angle side angle you must prove that an angle,an included side, and another angle are all congruent. In this proof alternate interior angles, and the reflexive property are used to prove the two triangles are congruent.
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
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MooMoo Math and Science

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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.
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MooMoo Math and Science

This is NIOS Maths Lesson 11 - Part 1 - Congruence of Triangles through Tamil and English

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payanmaram

Transformation means movement of objects in the coordinate plane.
Transformation can be done in a number of ways, including reflection, rotation, and translation.
Reflection is flipping an object across a line without changing its size or shape.
Rotation is rotating an object about a fixed point without changing its size or shape.
Translation is sliding a figure in any direction without changing its size, shape or orientation.

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Turtlediary