Area of a Triangle Given 3 Sides – Heron’s Calculator

When a triangle is given with sides alone, then Heron’s formula is the most appropriate to use. Having 3 sides might seem as if you do not have enough information to calculate the area, but Heron being an excellent Greek engineer, found a simple way of making an accurate calculation from knowing three sides alone.

Heron's Formula

Use this when you have a triangle with sides alone and no other information. Providing you have three sides, it is simply a matter of plugging the information into the formula.

The first step is to calculate the intermediate parameter s. This parameter plugs into the second larger formula to calculate the area A.

Herons Formula - Calculator Solver

This calculator will find out the area providing you have three sides of the triangle.

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