In this video we'll learn how to find the area of a trapezoid, which is just a quadrilateral in which two of the opposite sides are parallel, and the other two opposite sides are not parallel. To find the area, we'll take the average length of the two parallel sides (the bases), and multiply by the height of the trapezoid.

Streaming video file encoded with permission for digital streaming by Infobase on April 25, 2015.

Area of a Trapezoid: Geometry-Quadrilaterals --(7:20).