Question

If sum of opposite angles of a quadrilateral is ${180}^{\circ }$, then the quadrilateral is a _____.

• A. trapezium
• B. cyclic quadrilateral
• C. kite
• D. parallelogram

Answer 1

The correct option is B

cyclic quadrilateral

A quadrilateral is called cyclic if all the four vertices of it lie on a circle and the sum of its opposite angles is ${180}^{\circ }$.