已知正方体
的棱长为
是正方形
(含边界)内的动点,点
到平面
的距离等于
,则
两点间距离的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fbd9cbac5af2cc6c67baf3fc3e39240.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc6184b191e6da43911e701121517e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7935fe3125f247b7bea4f065ce9ad985.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38be38165dc2307982fc57001a447c56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e6b1e3dfb2e3e9bf0b52e417a1ca5a1.png)
A.![]() | B.3 | C.![]() | D.![]() |
2023·陕西西安·模拟预测 查看更多[4]
陕西省西安市大明宫中学2023届高三高考综合文科数学试题(已下线)第四节?直线,平面垂直的判定与性质(A素养养成卷)湖南省常德市第一中学2024届高三上学期第四次月考数学试题(已下线)重难点突破05 立体几何中的常考压轴小题(七大题型)-1
更新时间:2023-08-05 18:12:35
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【推荐1】已知表面积为100
的球内接一个圆锥,则该圆锥体积的最大值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
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【推荐2】如图,在三棱锥
中,
、
、
两两垂直,且
,
,
.设
是底面
内一点,定义
,
,
,其中
、
、
分别是三棱锥
、三棱锥
、三棱锥
的体积.若
,
,
,且
恒成立,则正实数
的最小值为( )
![](https://img.xkw.com/dksih/QBM/2020/1/16/2378483504398336/2378857983393792/STEM/68ec692d23584f39884f03574147f0cf.png?resizew=130)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/491c3a4f72b84ebadd28b90711435adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8825d400f453c5c17a7beeb1cc9a9cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5064f5ce5ac8428e277fd578da84ec6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2028de852a49eb78e929072200304e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d750bc454322f2d9e486704aebdcb3de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4b5e0b8c35a7d9b3d68db8e5c89b8bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0eaeb29ba5198d1bd74e7458856749a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32034cd802fdf71ec7af11b14d3ff619.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f03c9ba98e1bcb8c230629e6bfa6778f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88479c2f41b376afe2a0a960b689e53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/847a71027d866c375f4aadd0a521c4bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://img.xkw.com/dksih/QBM/2020/1/16/2378483504398336/2378857983393792/STEM/68ec692d23584f39884f03574147f0cf.png?resizew=130)
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【推荐1】如图,矩形
中,
,
为边
的中点,将
沿直线
翻转成
,构成四棱锥
,若
为线段
的中点,在翻转过程中有如下4个命题:①
平面
;②存在某个位置,使
;③存在某个位置,使
;④点
在半径为
的圆周上运动,其中正确的命题个数是( )
![](https://img.xkw.com/dksih/QBM/2017/3/30/1654875852242944/1654947766968320/STEM/51e5fdec5c7f435f8a4a26045c7b76e1.png?resizew=265)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abc28e69c1ba0aac981256887f7dfa94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa2a83fed9bf4cb09d84a980452e346.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2db2b1c641b93caae9b7a82441e4ba70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1f2344b28e00a403237f7716aa38017.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/657dffbd3623b705f871878fbd9df57e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2181c78134c310f746eab44b9124e63b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf93370d9638286955c65203ce50ff1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://img.xkw.com/dksih/QBM/2017/3/30/1654875852242944/1654947766968320/STEM/51e5fdec5c7f435f8a4a26045c7b76e1.png?resizew=265)
A.1个 | B.2个 | C.3个 | D.4个 |
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【推荐2】如图,矩形BDEF所在平面与正方形ABCD所在平面互相垂直,
,
,点P在线段EF上.给出下列命题:
![](https://img.xkw.com/dksih/QBM/2022/1/13/2893465864396800/2916171865915392/STEM/6e2bcee5e56643a68a33829d7c5f04c7.png?resizew=178)
①存在点P,使得直线
平面ACF;
②存在点P,使得直线
平面ACF;
③直线DP与平面ABCD所成角的正弦值的取值范围是
;
④三棱锥
的外接球被平面ACF所截得的截面面积是
.
其中所有真命题的序号( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714cc3707bba3bfdb56e251999be8592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82773737609e65dea3c5c67099f1b10d.png)
![](https://img.xkw.com/dksih/QBM/2022/1/13/2893465864396800/2916171865915392/STEM/6e2bcee5e56643a68a33829d7c5f04c7.png?resizew=178)
①存在点P,使得直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c99cda5a272bbe32b28575fa51b9f6d.png)
②存在点P,使得直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b301c74bfd4824215e12ce4504cfec1.png)
③直线DP与平面ABCD所成角的正弦值的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e7aec9f50619eb57d9a94fe60051cff.png)
④三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f178906e90bafd73e0ef9f89814855d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2deee4dfdf1c93a55744e332303a00b2.png)
其中所有真命题的序号( )
A.①③ | B.①④ | C.①②④ | D.①③④ |
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【推荐1】在三棱锥
中,底面
是等边三角形,侧面
是等腰直角三角形,
,
是平面
内一点,且
,若
,则点
的轨迹长度为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a65d5853c26657db448af610ac72cca4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98823cbc09ca52df1fbcc446eba3e44f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10c013bbe1fb6e9acf461548b5cf6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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【推荐2】在四棱锥
中,底面
是等腰梯形,若
,
,则下列结论可能成立的是( )
![](https://img.xkw.com/dksih/QBM/2022/5/25/2986934648700928/2986970029432832/STEM/90f9bbc2-0a68-4f38-aa18-feea1c07d28f.png?resizew=123)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e4c39ba72d14560e283ad7f75353a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002627d30d4ff3081523bacd62e04031.png)
![](https://img.xkw.com/dksih/QBM/2022/5/25/2986934648700928/2986970029432832/STEM/90f9bbc2-0a68-4f38-aa18-feea1c07d28f.png?resizew=123)
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【推荐1】设球
是棱长为2的正方体
的外接球,
为
的中点,点
在球面上运动,且总有
则点
的轨迹的周长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62ad610e8b93905c0a5ef7f04f38c08b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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【推荐2】如图所示,正方体ABCD﹣A1B1C1D1棱长为4,点
在棱
上,点
在棱
上,且
.在侧面
内以
为一个顶点作边长为1的正方形
,侧面
内动点
满足到平面
距离等于线段
长的
倍,则当点
运动时,三棱锥
的体积的最小值是
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/5b8bdfaf-a568-44bb-9324-0482e7a988d2.png?resizew=172)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cd8089bf8a278810573965bc1fb919b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b094e639c2b31dc54b1b3e6456e77843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41600c9ee19dcb98d0ff7e0a315129e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16dd27701a0a9849b58d39ae10623763.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb6101e45f8d7013bc3dc4197188c0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5a3fbe6dbf44f6332fd7340f1202cdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16dd27701a0a9849b58d39ae10623763.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf7b618c5571a392c3f5dfffecf52715.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca1d09859dfab140e55e3cc3e7d67d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e051d14fd6a787387995331f5e6d026.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09ef4dd09356dcbbcf2137bd4e9ebe0c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/5b8bdfaf-a568-44bb-9324-0482e7a988d2.png?resizew=172)
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