If PA and PB are tangents drawn from an external point P to a circle with centre O such that ∠APB = 70°, then ∠OAB is equal to:

If PA and PB are tangents drawn from an external point P to a circle w

1.	If PA and PB are tangents drawn from an external point P to a circle with centre O such that ∠APB = 70°, then ∠OAB is equal to:
A.	40°
B.	25°
C.	35°
D.	30°
Answer» D. 30°

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If PA and PB are tangents drawn from an external point P to a circle with centre O such that ∠APB = 70°, then ∠OAB is equal to:

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