PA and PB are two tangents to a circle with centre O, from a point P outside the circle. A and B are points on the circle. If ∠APB= 100°, then ∠OAB is equal to:

PA and PB are two tangents to a circle with centre O, from a point P o

1.	PA and PB are two tangents to a circle with centre O, from a point P outside the circle. A and B are points on the circle. If ∠APB= 100°, then ∠OAB is equal to:
A.	25°
B.	20°
C.	35°
D.	50°
Answer» E.

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PA and PB are two tangents to a circle with centre O, from a point P outside the circle. A and B are points on the circle. If ∠APB= 100°, then ∠OAB is equal to:

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