Q. 18

In the given figure, if AOD = 135° then BOC is equal to

8
A. 25°

B. 45°

C. 52.5°

D. 62.5°

Answer :

We know that the sum of angles subtended by opposite sides of a quadrilateral having a circumscribed circle is 180º
Therefore,
∠AOD + ∠BOC = 180º

135º + ∠BOC = 180º

∠BOC = 45º

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