Q. 10 F5.0( 1 Vote )

The points of con

Answer :

In right angled ΔOBP,


Given OBP = 30°



BOP + OPB + B = 180°


BOP + 30° + 90° = 180°


BOP = 180° – 120° = 60°


BOP = 60°


Now, AOB = 2 BOP


= 2 (60°)


= 120°


AOB = 120°

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