If a quadrilateral is equiangular, then it is a rectangle and if a quadrilateral is a rectangle, then it is equiangular.
Given: If a quadrilateral is equiangular then it is a rectangle and if a quadrilateral is a rectangle, then it is equiangular. Rewrite the statements in the form “p if and only if q” The statement p in the form of “if and only if” as follows A quadrilateral is an equiangular if and only if it is a rectangle.