来自胡建昆的问题
菱形的体积计算公式.一个三角形以一条边旋转,出来的菱形体积怎么计算
菱形的体积计算公式.一个三角形以一条边旋转,出来的菱形体积怎么计算
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2020-02-08 02:46
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刘炳华
如果是直角,以直角边为轴旋转,体积等于底面积乘高再乘1/3
2020-02-08 02:47:25
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