Question

the angle cbd is equal to

Answer 1

The answer is 2) 50 ....

Answer 2

Given, a circle with centre O form a cyclic quadrilateral OABC. &angleAOC=50°

we know that,sum of opposite angles of a cyclic quadrilateral is 180°.

angle AOC+ angleABC=180°

angle ABC=180°-50°

=130°

Now,angleABC+angleCBD=180°( linear pair)

angleCBD=180°-130°

=50°

Hence the angle cbd is equal to 50°