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How to use Trapezoid Calculator

Enter the two parallel sides, the height and the legs and the calculator returns the area, median and perimeter.

Frequently asked questions

What is the area formula for a trapezoid?

Area = ½ × (a + b) × h, where a and b are the parallel sides and h is the height between them.

What is the median or midsegment?

The median = (a + b)/2, the average of the two parallel sides, which equals the length of the midsegment.

How is the perimeter found?

Add all four sides: the two parallel sides plus the two legs.

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