Trapezoid Area Calculator
Compute the area of a trapezoid from its two bases and height.
Input Data
A
B
H
Results
Area = (a+b)/2 · h.
27.5
Explanatory note about the result.
A = (a+b)h/2 = (4+7)·5/2 = 27.5。
At a glance:A = (a+b)/2 · h, where a,b are the parallel bases and h the height. Complements triangle-area and rectangle-area.
Formula
A = (a + b)/2 · h.
How to Use
- Enter the two bases and height.
- The tool returns the area.
Case Studies
a=4, b=6, h=5
A = 5·5 = 25.
FAQ
Why average the bases?
A trapezoid is the average of the two parallel sides times height.
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References
Content review: Calculatorism Science Team. Results are for reference only; please refer to the relevant authorities for the official figures.