Question

which of the following is a concave quadrilateral? select the best answer from the choices provided. a. b. c. d.

Explanation:

A concave quadrilateral has one interior angle greater than \(180^{\circ}\). Option C has a "dent" which indicates an interior angle greater than \(180^{\circ}\). Options A and B are parallelograms (all interior angles less than \(180^{\circ}\)), and option D is a square (all angles \(90^{\circ}\)).

Answer:

C.