Question

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

• A. Parabolic
• B. Cyclic
• C. Both cyclic and parabolic
• D. Can't say

Answer 1

The correct option is B

Cyclic

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