Area & Perimeter Calculator
Area and perimeter of common shapes.
Inputs
- Shape
- a (length / radius / side 1)
- b (width / side 2)
- c (side 3 / base 2)
- Height (trapezoid)
How it is calculated
Triangle area by Heron's formula; circle π r².
Area and perimeter of common shapes.
Triangle area by Heron's formula; circle π r².