已知A，B，C三点在球O的表面，△ABC是边长为5正三角形，球面上另外一点D到A，B，C三点的距离分别是3，4，5，则球O的表面积是_刷题宝

题干

已知A，B，C三点在球O的表面，△ABC是边长为5正三角形，球面上另外一点D到A，B，C三点的距离分别是3，4，5，则球O的表面积是（）

A： $\frac{100 π}{3}$

B： $\frac{400 π}{3}$

C：100π

D：400π

上一题下一题 0.0难度选择题更新时间:2019-02-26 10:02:58

答案(点此获取答案解析）

A

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