Q. 134.3( 3 Votes )

In Fig. 5.13, POR A. 40°

B. 45°

C. 55°

D. 60°

Answer :

POQ and QOR forms a linear pair


(3a + 5)° + (2a-25)° = 180°


5a - 20° = 180°


5a = 200°


a = 40°

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