In the following figure, if O is the centre of a circle, PQ is a chord and the tangent PR at P makes an angle of 50° with PQ, then ∠POQ is equal to
A. 100°
B. 80°
C. 90°
D. 75°
Answer:A
In the following figure, if O is the centre of a circle, PQ is a chord and the tangent PR at P makes an angle of 50° with PQ, then ∠POQ is equal to
A. 100° B. 80° C. 90° D. 75°
Explanation: From figure using properties of circle and tangents