# Types of Quadrilaterals

Types of quadrilaterals classified by their properties: quadrilateral, trapezoid, parallelogram, rectangle, rhombus and square.

## Types

Quadrilateral:

Have 4 sides.

Trapezoid:

A quadrilateral that have one pair of parallel sides

Angles of a trapezoid

Parallelogram:

A trapezoid that have two pairs of parallel sides

Definition of a parallelogram

Rectangle:

A parallelogram

whose interior angles are all right angles

Sides of a rectangle

Rhombus:

A parallelogram

whose sides are all congruent

Diagonals of a rhombus

Square:

A rectangle and a rhombus

Area of a square