In the figure, PA is a tangent from an external point P to the circle with centre O. If ∠POB = 110°, then the measure of ∠APO is:

In the figure, PA is a tangent from an external point P to the circle

1.	In the figure, PA is a tangent from an external point P to the circle with centre O. If ∠POB = 110°, then the measure of ∠APO is:
A.	40°
B.	20°
C.	25°
D.	30°
Answer» C. 25°

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In the figure, PA is a tangent from an external point P to the circle with centre O. If ∠POB = 110°, then the measure of ∠APO is:

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