Question

1. Find b
2. Find x and y​

Answer 1

Answer:

(1) b+116°=180°{opposite angles of a cyclic quadrilateral are supplementary}

b=180°-116°

b=64°

(2) we know that angle subtended by an Arc at the centre of circle is double the angle subtended by it at the remaining part of the circle y=1/2×80°=40°