Class 9 | Chapter 6 | Lines and Angles | Theorem 6.7

Theorem 6.7: The sum of the angles of a triangle is 180º.

Chapter 6 – Lines and Angles

This playlist covers all the questions, concepts, theorems and examples of chapter 6 (Lines and Angles) of class 9, NCERT textbook. Click a thumbnail to watch the tutorial. 

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Mathematics is like music - Enjoy it!!!