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# What is Heron's formula?

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Heron's formula is used to calculate the area of a triangle. The formula finds the area by taking the square root of s times a, multiplied by the difference between s and b, and multiplied by the distance difference between s and c; it can also be expressed as A = square root of (s-a)(s-b)(s-c).

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In the formula, "A" is the symbol for area, and "a," "b" and "c" are the symbols for each side of the triangle. "S" is the symbol for the semiperimeter as determined by the formula dividing the sum of a, b and c by two. Integrating the two formulas can result in a version without the variable s. The formula is named after the Greek mathematician, Hero of Alexandria.

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