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Perimeter of Triangle

Perimeter of Triangle - illustration

To calculate the perimeter of a triangle we need to know a length of all its sides. The perimeter is a total sum of its sides. You can use this formula, for example to count a length of a fence around a triangular garden. The elementary unit is one metre (1 m).

Perimeter of Triangle - formula

Perimeter of Triangle = side length a + side length b + side length c

P = a + b + c

Perimeter of Triangle - calculator

2D & 3D CalcCalculator for Perimeter of Triangle