Rhombuses, Rectangles, and Squares

Front

What is a rhombus?

Back

A rhombus is a quadrilateral with all four sides of equal length and opposite angles that are equal.

Front

What is a rectangle?

Back

A rectangle is a quadrilateral with opposite sides that are equal in length and all angles measuring 90 degrees.

Front

What is a square?

Back

A square is a special type of rectangle and rhombus where all four sides are equal and all angles are 90 degrees.

Front

How do you classify a quadrilateral with four equal sides and four right angles?

Back

It is classified as a square.

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

If one angle of a rectangle is 90 degrees, what are the measures of the other three angles?

Back

All other angles are also 90 degrees.

Front

What is the relationship between the diagonals of a rhombus?

Back

The diagonals of a rhombus bisect each other at right angles.

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

What is the formula for the area of a square?

Back

Area = side².

Front

What is the formula for the area of a rhombus?

Back

Area = (diagonal1 × diagonal2) / 2.