三辺で面積計算（ヘロンの公式）
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Economía y empresa
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Productividad
Desarrollador youji okamura
1.99 USD
It is a calculation necessary to create to calculate the area of a triangle (Herons formula) slopes development view, paved area, a can-shaped development view from three sides.
It is an application that while measuring the three sides in the field, it is possible to area calculated on the fly.