Q. 55.0( 4 Votes )

In the given figu A. 45°

B. 60°

C. 75°

D. 56°

Answer :

Sum of angles in a straight line is 180°

So, AOD + DOC + BOC = 180°


3x + 5x + 4x = 180


12x = 180


x = 15


BOC = 4x = 4×15 = 60°.

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