Parallelogram Properties

Front

What is a parallelogram?

Back

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

Front

What are the properties of opposite sides in a parallelogram?

Back

In a parallelogram, opposite sides are parallel and equal in length.

Front

What can be said about the opposite angles in a parallelogram?

Back

In a parallelogram, opposite angles are equal.

Front

What is the relationship between the diagonals of a parallelogram?

Back

The diagonals of a parallelogram bisect each other.

Front

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

Back

The opposite angle is also 70 degrees, and the adjacent angles are 110 degrees each.

Front

How can you determine if a quadrilateral is a parallelogram using its sides?

Back

If both pairs of opposite sides are equal in length, then the quadrilateral is a parallelogram.

Front

What is the formula for the area of a parallelogram?

Back

Area = base × height.

Front

If the base of a parallelogram is 5 cm and the height is 3 cm, what is the area?

Back

Area = 5 cm × 3 cm = 15 cm².

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

If two sides of a quadrilateral are parallel and equal, what can be inferred?

Back

It may be a parallelogram, but more information is needed about the other sides.