4 Written Questions
4 Multiple Choice Questions
 ...then the parallelogram is a rectangle.
 A quadrilateral with two pairs of parallel, congruent sides.
 A quadrilateral with four congruent sides.
 A quadrilateral with four right angles.
3 True/False Questions

indirect proof → A proof by contradiction. A proof in which the statement you want to prove is assumed to be false.

If one pair of sides of a quadrilateral are both parallel and congruent... → ...then the parallelogram is a rhombus.

If two adjacent sides of a parallelogram are congruent... → ...then the parallelogram is a rhombus.