Triangle Calculator
Calculate the area and perimeter of a triangle from its three sides.
6.0000
Area
12.0000
Perimeter
Formula
Perimeter = a + b + c
Area (Heron's formula) = √(s(s-a)(s-b)(s-c)), where s = perimeter ÷ 2
Area (Heron's formula) = √(s(s-a)(s-b)(s-c)), where s = perimeter ÷ 2
Frequently Asked Questions
What is the area for sides 3.00, 4.00, 5.00?
6.0000.