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In a circle with centre O, BC is a chord...

In a circle with centre O, BC is a chord. Point D and A are on the circle, on the opposite side of BC, such that `angle DBC = 28^@` and BD=DC. What is the measure of `angle BOC`?
O केंद्र वाले एक वृत्त में, BC एक जीवा है। बिंदु D और A, वृत्त पर स्थित है जो BC के विपरीत है जैसे कि `angle DBC = 28^@` और BD = DC। `angle BOC` का माप कया है

A

`98^@`

B

`84^@`

C

`112^@`

D

`96^@`

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