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Chapter 6 Class 9 Lines and Angles
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Ex 6.1, 3 - In given figure, ∠PQR = ∠PRQ, then prove - Angles - Problems

Ex 6.1,3 - Chapter 6 Class 9 Lines and Angles - Part 2

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Ex6.1, 3 In the given figure, ∠PQR = ∠PRQ, then prove that ∠PQS = ∠PRT. Let ∠PQR = x Hence, ∠PRQ = x Now, ∠PQS + ∠PQR = 180° ∠PQS = 180° − ∠PQR ∠PQS = 180° − x Also, we can say ∠PRT + ∠PRQ = 180° ∠PRT = 180° − ∠PRQ ∠PRT = 180° − x From (1) & (2) ∠PQS = ∠PRT Hence proved.

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.