Question

what is a cyclic quardiilateral ?explain.

Answer 1

quadrilater formed in circle opp angles are supplementary

Answer 2

In Euclidean geometry, a cyclic quadrilateral or inscribed quadrilateral is a quadrilateral whose vertices all lie on a single circle. This circle is called the circumcircle or circumscribed circle, and the vertices are said to be concyclic. ... All triangles have a circumcircle, but not all quadrilaterals do.