Properties of Parallelograms Classwork

Front

Consecutive angles of parallelograms are ______.

Back

supplementary

Front

The opposite sides of a parallelogram are ______.

Back

parallel

Front

The diagonals of a parallelogram _______ each other.

Back

bisect

Front

In parallelogram ABCD, if AB ≅ ?, then AB ≅ CD.

Back

CD

Front

If one angle of a parallelogram is 70 degrees, what are the measures of the other angles?

Back

70°, 110°, 70°, 110°

Front

The sum of the interior angles of a parallelogram is ______.

Back

360 degrees

Front

In a parallelogram, if one angle is 60 degrees, what is the measure of the adjacent angle?

Back

120 degrees

Front

The diagonals of a parallelogram are ______.

Back

not necessarily equal but bisect each other.

Front

If the lengths of two adjacent sides of a parallelogram are 5 cm and 12 cm, what is the perimeter?

Back

34 cm

Front

In parallelogram ABCD, if AB = 8 cm and CD = 8 cm, then AB is ______ to CD.

Back

parallel