Question

In the given figure, O is the centre of the circle. Find ∠CBD.

Answer 1

It is given that,

We have to find

Since, (Given)

So,

(The angle subtended by an arc of a circle at the centre is double the angle subtended by it at any point on the remaining part of the circle.)

Now,

(Opposite pair of angle of cyclic quadrilateral)

So,

…… (1)

(Linear pair)

()

Hence