Question

in the given figure, tid
A​

Answer 1

Step-by-step explanation:

ABP=85(Given)

∠AOB=2(∠ABP)(Angle in cribed by centre of circle is double angle in scribed by any chord)

∠AOB=2×85=170

In△AOB

Since OA=OB(O is centre of circle)

∠OAB=∠OBA(Angle along the equal side are equal)

Hence∠OAB+∠OBA+∠AOB=180

∠OAB+∠OBA=180−170=10

Hence∠OAB=∠OBA=5

∠OAB=a=5

Hence option(D)is the correct answer

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