已知直四棱柱
的棱长均为2,
.以D1为球心,
为半径的球面与侧面BCC1B1的交线长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf725e3d44c1b473c0e748ac2f45f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6906f59d09ce31956d6f5ea2b23fc77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
A.![]() | B.![]() | C.![]() | D.2 |
更新时间:2023-07-08 09:22:36
|
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名校
解题方法
【推荐1】在矩形ABCD中,
,
,点E在CD上,现将
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】在长方体
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内,满足
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4362edfc026266c5d29b3f90df374e8.png)
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【推荐1】已知平面
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截球
的球面得圆
,已知球
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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A.3 | B.![]() | C.4 | D.![]() |
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【推荐2】已知
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