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A triangle ABC is inscribed in a circle ...

A triangle ABC is inscribed in a circle with centre O. AO is produced to meet the circle at K and `AD bot BC`. If `angle B=80^@` and `angle C= 64^@`, then the measure of `angle DAK` is :
एक त्रिभुज ABC किसी वृत्त में अंतर्निहित है जिसका केंद्र O है | AO को बढ़ाया जाता है जो वृत्त से K पर मिलता है और `AD bot BC` है | यदि `angle B=80^@` और `angle C= 64^@` है, तो `angle DAK` का माप क्या होगा ?

A

a)`10^@`

B

b)`16^@`

C

c)`12^@`

D

d)`20^@`

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