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In the given figure O is the centre of the circle. If angle `angle PRQ = 64^@`, then what is the measure of angle `angle OPQ`?
दिए गए आकृति में, O वृत्त का केंद्र है। यदि कोण `angle PRQ = 64^@`, फिर कोण `angle OPQ` का माप क्या है?

A

`26^@`

B

`32^@`

C

`64^@`

D

`60^@`

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