Q. 225.0( 1 Vote )

In Fig. 5.19, <sp A. 150°

B. 75°

C. 45°

D. 60°

Answer :

Since ROS, POR and QOS forms a linear pair


ROS is a right angle


So POR and QOS are complementary angles


Let POR be x, QOS be 5x


x + 5x = 90°


6x = 90°


x = 15°


QOS = 15°× 5 = 75°

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