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圆的标准式在知道圆心的情况下半径怎么求
更新时间: 2021-02-11 04:37:56  

圆的标准式知道圆心坐标的情况下,圆的标准式在知道圆心的情况下半径怎么求?圆的一般方程是x2+y2+Dx+Ey+F=0(D2+E2-4F>0)

其中圆心坐标是(-D/2,-E/2)

半径的解答公式为 【根号(D2+E2-4F)】/2

关键词: 标准 知道 圆心 情况 半径 怎么

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