Triangle Calculator
Calculate area, perimeter, height, and angles of any triangle
Understanding Triangle Calculations
Area
The area of a triangle can be calculated using Heron's formula:
Area = √(s(s-a)(s-b)(s-c)), where s = (a+b+c)/2 is the semi-perimeter
Perimeter
The perimeter is simply the sum of all sides: P = a + b + c
Height
The height (altitude) can be found using: h = (2 × Area) ÷ base
Types of Triangles
- Equilateral: All sides and angles are equal
- Isosceles: Two sides and two angles are equal
- Scalene: All sides and angles are different