Trapezoid Geometry

A trapezoid is a four sided shape with one pair of opposite parallel sides.

A trapezoid has some important dimensions: the length of the two bases and the height. It also has an area, which is the amount of space contained by a trapezoid.

This widget allows you to find the lengths of the two bases, heights and areas of trapezoids.

Learn About Trapezoid Geometry

Draw a trapezoid by:

  • Clicking on the canvas, or
  • Entering both base lengths and the height.

Dimensions of the Trapezoid

= 12 × (base 1 + base 2) × height