在四面体ABCD中,
,
,
,当四面体ABCD的体积最大时,其外接球的表面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a9fa8832f98b5418a7d75892f7951b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99ab11d21fc73d8af3d1cb0c09ac3f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef27ae2e2bd091fa0879d0ea96c6d1e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2019-03-11 21:53:22
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【推荐1】两平行平面截半径为5的球,若截面面积分别为9 π和16 π,则这两个平面间的距离是( )
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【推荐2】在四面体
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】在三棱锥P-ABC中,
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【推荐2】如图,在四棱锥
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A.![]() ![]() |
B.E为![]() |
C.三棱锥![]() ![]() |
D.![]() ![]() ![]() |
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