最終更新日：2024/07/30
The formula A=√, where a, b, and c are the sidelengths of a triangle, s is its semiperimeter, and A is its area.
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Heron's formula
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The formula A=√, where a, b, and c are the sidelengths of a triangle, s is its semiperimeter, and A is its area.
Heron's formula
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