Parallelogram Properties

Front

In parallelogram WXYZ, what is the measure of angle Y if angle X is 99 degrees?

Back

Angle Y is 81 degrees because consecutive angles in a parallelogram are supplementary.

Front

In a parallelogram, consecutive angles are ___________.

Back

supplementary

Front

In a parallelogram, opposite angles are _________.

Back

congruent

Front

The diagonals of a parallelogram always ...

Back

bisect each other.

Front

Which is NOT a property of a parallelogram?

Back

Diagonals are congruent.

Front

What is the sum of the interior angles of a parallelogram?

Back

360 degrees.

Front

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

Back

The other angles are 110 degrees, 70 degrees, and 110 degrees.

Front

What can be said about the lengths of opposite sides in a parallelogram?

Back

Opposite sides are equal in length.

Front

If the diagonals of a parallelogram are perpendicular, what can be inferred about the parallelogram?

Back

It is a rhombus.

Front

In a parallelogram, if one pair of opposite sides is equal and parallel, what can be concluded?

Back

The figure is a parallelogram.