Properties of Parallelograms

Front

In a parallelogram, diagonals are __________.

Back

bisected

Front

The opposite angles of a parallelogram are __________.

Back

congruent

Front

A quadrilateral is a parallelogram if __________.

Back

opposite sides are parallel.

Front

A property of parallelograms states that opposite sides are __________.

Back

congruent.

Front

In a parallelogram, the sum of the interior angles is __________ degrees.

Back

360 degrees.

Front

If one angle of a parallelogram is 70 degrees, the opposite angle is __________ degrees.

Back

70 degrees.

Front

If two angles of a parallelogram are 60 degrees, the other two angles are __________ degrees each.

Back

120 degrees.

Front

The diagonals of a parallelogram __________ each other.

Back

bisect.

Front

In a parallelogram, consecutive angles are __________.

Back

supplementary.

Front

If a quadrilateral has one pair of opposite sides that are both parallel and congruent, it is a __________.

Back

parallelogram.