Quadrilaterals

A quadrilateral is a parallelogram if both pairs of opposite sides are

congruent.

• True

• False

A quadrilateral is a parallelogram if both pairs of opposite angles are supplementary.

• False

• True

A quadrilateral is a parallelogram if any two consecutive angles are complementary.

• False

• True

A quadrilateral is a parallelogram if the diagonals bisect each other.

• True

• False

A quadrilateral is a parallelogram if the diagonals form two congruent triangles.

• True

• False

• 20

• 15

• 25

• 10

A polygon which has four sides is a ___________.

A quadrilateral with only one pair of opposite sides are parallel is a ________.