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三角形面积的一些求解方法 #1

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ZhangCheng-zh opened this issue May 15, 2022 · 0 comments

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ZhangCheng-zh commented May 15, 2022 •

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鞋带公式

使用三个笛卡尔坐标系的顶点 (x1, y1), (x2, y2), (x3, y3) 求面积
矩阵表达式：

代数表达式：

海伦公式

用三个顶点得到三个边长，使用三个边长 a, b, c 求的总面积:

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