Parallelograms and Rectangles

Front

What is a parallelogram?

Back

A parallelogram is a 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.

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

What is a rectangle?

Back

A rectangle is a parallelogram with four right angles.

Front

What are the properties of a rectangle?

Back

1. Opposite sides are equal in length. 2. All angles are right angles. 3. The diagonals are equal in length.

Front

How do you find the area of a parallelogram?

Back

Area = base × height.

Front

How do you find the area of a rectangle?

Back

Area = length × width.

Front

What is the relationship between the diagonals of a rectangle?

Back

The diagonals of a rectangle are congruent (equal in length).

Front

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

Back

The opposite angles of a parallelogram are congruent.

Front

What is the relationship between consecutive angles of a parallelogram?

Back

The consecutive angles of a parallelogram are supplementary (add up to 180 degrees).