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Class 9 Maths | Chapter 6 | Exercise 6.1 Q1 , Q2 , Q3 | Lines and Angles | NCERT | PVS Learning


Class 9 Maths Chapter 6 Exercise: 6.1

1. In Fig. 6.13, lines AB and CD intersect at O. If ∠AOC +∠BOE = 70° and ∠BOD = 40°, find ∠BOE and reflex ∠COE.

2. In Fig. 6.14, lines XY and MN intersect at O. If ∠POY = 90° and a : b = 2 : 3, find c.

3. In Fig. 6.15, ∠PQR = ∠PRQ, then prove that ∠PQS = ∠PRT.


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