A **quadrilateral** is a polygon (i.e. 2D shape) with four edges (or sides) and four vertices or corners. Examples of quadrilaterals are illustrated below.

In this section, we’ll focus on finding the area of **trapezoids **(right). A comparison of how to find the area of different quadrilaterals, namely the **parallelograms **(left) and **rhombuses **(center) are also shown.

Of these three, the more complicated area to find is the one for trapezoids. The video below shows two examples: the first is a basic look at how the area formula is used, while the second shows how you can analytically break down a trapezoid into three segments.