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4 Written questions
4 Multiple choice questions
 A proof by contradiction. A proof in which the statement you want to prove is assumed to be false.
 ...then the parallelogram is a rhombus.
 A quadrilateral with four congruent sides.
 ...then the parallelogram is a rectangle.
3 True/False questions

If the diagonals of a parallelogram are perpendicular... → ...then the parallelogram is a rhombus.

square → A quadrilateral with four congruent sides.

If the diagonals of a parallelogram are congruent... → ...then the parallelogram is a rhombus.