Trapezoid Calculator
Calculate area, perimeter and median of a trapezoid from its parallel sides and height.
Inputs
units
units
units
units
units
Area
40.0000sq units
Perimeter
26.7800units
Median
8.0000units
Step by step
Area
A = ½(6 + 10) × 5
= 40.0000
Perimeter
P = 6 + 10 + 5.39 + 5.39
= 26.7800
Median (midsegment)
m = (6 + 10) / 2
= 8
How it works
A trapezoid (trapezium in British English) has one pair of parallel sides. Its area is the average of the parallel sides times the height. The median is the segment connecting the midpoints of the legs.
Formula
Area
A = ½(a + b) × h
- a
- Top parallel side
- b
- Bottom parallel side
- h
- Height between parallel sides
Frequently Asked Questions
What is a right trapezoid?
A right trapezoid has two adjacent right angles — one leg is perpendicular to both parallel sides.
What is the median of a trapezoid?
The median (midsegment) connects the midpoints of the non-parallel sides and equals the average of the parallel sides.