Parallelograms, Rectangles, Rhombi and Squares

Front

What is a parallelogram?

Back

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

Front

What are the properties of a rectangle?

Back

A rectangle is a parallelogram with four right angles and opposite sides that are equal in length.

Front

What is a rhombus?

Back

A rhombus is a parallelogram with all four sides of equal length.

Front

What defines a square?

Back

A square is a parallelogram that has all sides equal and all angles equal to 90 degrees.

Front

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

Back

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

Front

What are the opposite angles of a parallelogram?

Back

The opposite angles of a parallelogram are congruent (equal in measure).

Front

What is the relationship between the diagonals of a parallelogram?

Back

The diagonals of a parallelogram bisect each other.

Front

What is the difference between a rectangle and a rhombus?

Back

A rectangle has four right angles, while a rhombus has all sides equal but not necessarily right angles.

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 (supplementary to 70 degrees).

Front

What is the formula for the area of a rectangle?

Back

The area of a rectangle is calculated as Area = length × width.