Parallelograms

The following is a rhombus. Find y.

The following quadrilateral is a parallelogram.

• x = 30, y = 40

• x = 40, y = 30

• x = 40, y = 15

• x = 30, y = 30

Which of the following properties is true about parallelograms?

• Base angles are congruent.

• Diagonals are congruent.

• Opposite sides are parallel.

The diagonals of a parallelogram

• are always congruent

• bisect each other

• are never congruent

• parallel

This figure has 2 pairs of parallel sides and 2 pairs of congruent sides.

• Paralellogram

• kite

• trapezoid

• triangle

In a parallelogram, opposite sides are _____.

• congruent

• supplementary

• complementary

• bisect each other

In a parallelogram, opposite angles are _____.

• Congruent

• supplementary

• complementary

• bisect each other

In a parallelogram, diagonals ______.

• are congruent

• bisect each other

• are supplementary

• are complementary

A _______________ is a quadrilateral with two sets of parallel sides.

• trapezoid

• parallelogram

• kite

• triangle

A rhombus is a parallelogram with 

• four congruent sides

• four congruent diagonals

• four acute angles

• four congruent angles