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Tangents from P touch a circle (centre O) at T and S, with ∠TPS = 50°. Find ∠TOS.
A40°
B100°
C50°
D130°
Answer & Solution
Correct answer: D. 130°
The two angles are supplementary in the tangent quadrilateral, so ∠TOS = 180° - 50° = 130°.
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