Triangles Class 9 Maths in One Shot (Concepts & Examples) | CBSE Class 9 MidTerm | BYJU'S Class 9

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In this session, Khushbu Ma'am will be teaching some of the important concepts in your NCERT Chapter 6 Triangles for the upcoming boards.

In this class, we will be revising the following topics in detail using some great examples to - help make your learning easier:
- Congruence of Triangles
- Criteria for Congruence of Triangles
- Some Properties of Triangles
- Inequalities in a Triangle

Two figures are congruent if they are of the same shape and of the same size. If two sides and the included angle of one triangle are equal to two sides and the included angle of the other triangle, then the two triangles are congruent. Join this class to learn more about this.

Have a query regarding any of the topics discussed in this class? Drop your queries in the LIVE chat box and Khushbu Ma’am will answer them for you. For more class 9 Maths video lessons, subscribe to our BYJU’S - Class 9 & 10 channel.

00:00 Introduction
1:44 ANTHE - Aakash National Talent Hunt Exam
3:16 Mission Mid - Terms
5:34 Let’s Observe the Shapes
6:36 Is there any Difference?
8:08 SAS Congruence Criterion
10:07 Question and Solution
13:43 Question and Solution
19:43 ASA Congruence Criterion
21:21 Proof: ASA Congruence Criterion
31:59 AAS Congruence Criterion
33:06 Question and Solution
34:22 SSS Congruence Criterion
35:19 Question and Solution
37:19 Question and Solution
42:34 Is SSA and AAA a Congruence Rule?
42:45 Let’s draw triangles with angles 400, 500 and 900?
43:51 Conclusion
45:39 Observe these figures closely
47:21 Importance of Theorem
50:21 Homework Question
50:38 BYJU’S Mini Learning Program in now free
51:08 About Telegram

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