Area of Trapezoid Formula

Area of Trapezoid

Formula

Summary

The area of a trapezoid is given by the sum of its base and top length multiplied by its height.

Expression Description
The area of the trapezoid.
The length of the top of the trapezoid.
The length of the base of the trapezoid.
The height of the trapezoid

Usage Notes

The area of a trapezoid is given by its height multiplied by the sum of its top length and bottom length divided by two.

Area of Trapezoid Bottom 5 Top 3 Height 2
Area of Trapezoid Bottom 3 Top 3 Height 2

To calculate the area of trapezoid sum the bottom and top width together and multiply by the height. Then divide the result of the first operation by two.

Steps
  1. Substitute the length of the bottom, top, and height of the trapezoid into the formula.

  2. Evaluate expression.

  3. The area of the trapezoid is 8 units squared.

Area of Trapezoid Bottom 7 Top 3 Height 4
Area of Trapezoid Bottom 7 Top 3 Height 4

To calculate the area of trapezoid sum the bottom and top width together and multiply by the height. Then divide the result of the first operation by two.

Steps
  1. Substitute the length of the bottom, top, and height of the trapezoid into the formula.

  2. Evaluate expression.

  3. The area of the trapezoid is units squared.

Area of Trapezoid Bottom 9 Top 6 Height 3
Area of Trapezoid Bottom 9 Top 6 Height 3

To calculate the area of trapezoid sum the bottom and top width together and multiply by the height. Then divide the result of the first operation by two.

Steps
  1. Substitute the length of the bottom, top, and height of the trapezoid into the formula.

  2. Evaluate expression.

  3. The area of the trapezoid is units squared.