What happens if the sides can't form a triangle?

If the side lengths violate the triangle inequality, the area will show as 0 since the calculation is clamped to avoid invalid results.

Triangle Area Calculator

Given the lengths of all three sides of a triangle, compute its area using Heron's formula.

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Formula

Area = √(s(s−a)(s−b)(s−c)), where s = perimeter / 2

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