Trapezoid Area Calculator

Find the area of a trapezoid.

Area 26

Formula: area = (a + b) ÷ 2 × height

Step-by-step with your numbers:

1. Values used:

2. Base a = 8

3. Base b = 5

4. Height = 4

6. Area = 26

Did we solve your problem today?

Area of a four-sided shape with two parallel sides.

The math behind it

area = average of the two parallel sides × the perpendicular height.

a 8, b 5, h 4 → (13/2) × 4 = 26.

Which sides are a and b?

The two parallel ones; height is the distance between them.