海伦公
三辺長さだけ从三角形的面积求める。
公式
S = sqrt(s(s-a)(s-b)(s-c)), s = (a+b+c)/2
变量
| S | Area of the triangle (m²) |
|---|---|
| a | Length of side a (m) |
| b | Length of side b (m) |
| c | Length of side c (m) |
| s | Semiperimeter (m) |
三辺長さだけ从三角形的面积求める。
S = sqrt(s(s-a)(s-b)(s-c)), s = (a+b+c)/2
| S | Area of the triangle (m²) |
|---|---|
| a | Length of side a (m) |
| b | Length of side b (m) |
| c | Length of side c (m) |
| s | Semiperimeter (m) |