幾何学

三角形計算機

任意の三角形の角度・辺・面積・周長を計算

使い方

Select whether you want to calculate the Area or the Perimeter.
Enter the required dimensions for your selection.
Click 計算する to instantly view the result.

計算式

Triangle formulas:

Area (A) = ½ × Base × Height
Perimeter (P) = Side A + Side B + Side C