关于本计算器
Triangle area by base × height ÷ 2 or Heron’s formula from three sides, plus perimeter.
三角形计算器
底乘高或海伦公式求面积。
输入计算参数
计算结果摘要
面积30
周长—
计税模式底 × 高
常见问题
Heron’s formula?
Area = √(s(s−a)(s−b)(s−c)) with s the semiperimeter.
Invalid triangle?
Sides must satisfy all three triangle inequalities.
Right triangle?
Use base and height as legs, or the dedicated Pythagoras tool.