what is heron's formula
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In geometry, Heron's formula (sometimes called Hero's formula), named after Hero of Alexandria, gives the area of a triangle when the length of all three sides are known. Unlike other triangle area formulae, there is no need to calculate angles or other distances in the triangle first.
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This formula is understood for its simple calculation supporting the length of three sides of a triangle. Let say, if the length of three sides are a, b, and c, then its semi-perimeter is. s=a+b+c2.
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