Calculate the area of a trapezoid (as defined in the US) using our Area Calculator, or try calculating it yourself with the formulas provided.
Geometry Calculator
Enter the top, base and height of the trapezoid in the calculator below to calculate the area of the trapezoid.
Calculate the area of trapezoid
Geometry Definitions
The following is a list of definitions relating to the area of a trapezoid.
What is area?
Area is the size of a surface.
What is a trapezoid?
A trapezoid (as defined in the US) is a two-dimensional shape that is a quadrilateral with one pair of sides that are parallel.
Geometry Formula
The formula to calculate the area of a trapezoid is:
A = ½(a+b) x h
where...
- A = area of trapezoid
- a = top of parallel sides of trapezoid
- b = base of parallel sides of trapezoid
- h = height of trapezoid
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