Question

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

Answer 1

Here, ∠DAC = ∠CBD = 25°

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

Again, 120° = b + 25°

(In a triangle, measure of exterior angle is equal to the sum of pair of opposite interior angles)

`=>` b = 95°