Properties of Parallelograms

Front

What are the properties of parallelograms?

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

What is a parallelogram?

Back

A parallelogram is a quadrilateral with opposite sides that are parallel and equal in length.

Front

If one angle of a parallelogram is 75 degrees, what are the measures of the other angles?

Back

The opposite angle is also 75 degrees, and the consecutive angles are 105 degrees each.

Front

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

Back

The sum of the interior angles of a parallelogram is 360 degrees.

Front

How do you find the length of a diagonal in a parallelogram?

Back

Front

What is the relationship between the diagonals of a parallelogram?

Back

The diagonals of a parallelogram bisect each other.

Front

If two sides of a parallelogram are 10 cm and 15 cm, what is the perimeter?

Back

Front

What is the area formula for a parallelogram?

Back

Front

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

Back

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

Front

If the lengths of the sides of a parallelogram are 8 cm and 6 cm, what is the ratio of the lengths of the sides?

Back

The ratio of the lengths of the sides is 4:3.