Topic 15 Properties of Parallelograms Practice

Front

What is a parallelogram?

Back

A parallelogram is a four-sided figure (quadrilateral) with opposite sides that are parallel and equal in length.

Front

What are the properties of a parallelogram?

Back

1. Opposite sides are equal in length. 2. Opposite angles are equal. 3. The diagonals bisect each other. 4. Consecutive angles are supplementary.

Front

If one angle of a parallelogram is 70°, what is the measure of the opposite angle?

Back

70° (Opposite angles in a parallelogram are equal.)

Front

If two angles of a parallelogram are 70° and 110°, what is the measure of the other two angles?

Back

70° and 110° (Opposite angles are equal, and consecutive angles are supplementary.)

Front

What theorem states that if the diagonals of a quadrilateral bisect each other, then the quadrilateral is a parallelogram?

Back

Parallelogram Diagonals Converse.

Front

What is the relationship between the opposite sides of a parallelogram?

Back

The opposite sides of a parallelogram are both parallel and equal in length.

Front

Back

95° (Opposite angles in a parallelogram are equal.)

Front

What type of parallelogram has all sides equal and all angles equal?

Back

Square.

Front

Back

Rhombus (All sides are equal.)

Front

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

Back

360° (The sum of the interior angles of any quadrilateral is 360°.)