Question

In the following figure, O is the centre of the circle. Find the values of a, b, c and d.

Answer 1

∠APB = 90° (Angle in a semicircle)

∴ ∠BAP = 90° – 45° = 45°

Now, d = ∠BCP = ∠BAP = 45°

(Angle subtended by the same chord on the circle are equal)