Triangle Area Calculator

How to Calculate Triangle Area

Base and Height Method

The most common method to calculate a triangle's area is using its base and height: Area = ½ × base × height

Heron's Formula (Three Sides)

When you know all three sides (a, b, c), use Heron's formula: s = (a + b + c)/2 (semi-perimeter) Area = √(s(s-a)(s-b)(s-c))

SAS Method

With two sides and the included angle: Area = ½ × a × b × sin(C)