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4 Written questions
4 Multiple choice questions
 A quadrilateral with four congruent sides.
 A quadrilateral with four right angles.
 ...then the parallelogram is a rectangle.
 a) Propose a new conditional by negating the original conclusion. b) Show the absurdity of the new conditional.
3 True/False questions

indirect proof → A quadrilateral with four right angles.

parallelogram → A quadrilateral with two pairs of parallel, congruent sides.

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