名校
解题方法
1 . 如图,正方体
中,E,F分别是棱
,
的中点,若正方体的棱长为2,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
A.点D到平面![]() ![]() |
B.直线![]() ![]() |
C.直线![]() ![]() ![]() |
D.平面![]() ![]() ![]() ![]() |
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4卷引用:山东省枣庄市薛城实验中学等校2023-2024学年高二上学期12月大联考数学试题
名校
解题方法
2 . 正方体
棱长为2,E,F分别是棱
,
的中点,M是正方体的表面上一动点,当四面体
的体积最大时,四面体
的外接球的表面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba5627b81d85bbe3bc00f8d070bfd6fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba5627b81d85bbe3bc00f8d070bfd6fc.png)
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2卷引用:重庆市沙坪坝区重庆一中2024届高三上学期12月月考数学试题
解题方法
3 . 如图,在长方体
中,其表面积与12条棱长之和均为24,E,G分别为棱
,
的中点,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/23/d6ee6534-446a-4a2d-a18c-0e9dfe040e72.png?resizew=174)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/23/d6ee6534-446a-4a2d-a18c-0e9dfe040e72.png?resizew=174)
A.该长方体的外接球表面积为![]() |
B.![]() ![]() |
C.若线段![]() ![]() ![]() ![]() |
D.平面![]() ![]() ![]() |
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2卷引用:江西省2024届高三上学期12月统一调研测试数学试题
名校
解题方法
4 . 如图,已知四棱锥
的底面
是直角梯形,
,
,
,
平面
,
,下列说法正确的是( )
![](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/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af260e0d98c95d1e092dc4c6d348e3ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81981fd7b343f4fe2db8f36eb66c1ce7.png)
A.![]() ![]() ![]() |
B.![]() ![]() ![]() |
C.平面![]() ![]() ![]() |
D.![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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4卷引用:四川省遂宁市蓬溪中学校2023-2024学年高二上学期12月月考数学试题
名校
5 . 如图所示的六面体中,
,
,
两两垂直,
连线经过三角形
的重心
,且
,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/19/09457a3d-4a27-4e4f-acdc-aef9a4bd959c.png?resizew=160)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d4db9b82b67efe45a02fca32bfcf5dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2bc5e50b8dfa02601c70822252854a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09fcb20a6972108871adbf284f9e5006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f07e98f7a65097311e8d93bd9f2af26e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/19/09457a3d-4a27-4e4f-acdc-aef9a4bd959c.png?resizew=160)
A.若![]() ![]() ![]() |
B.若![]() ![]() ![]() |
C.若![]() ![]() |
D.若点![]() ![]() ![]() |
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名校
6 . 已知
、
分别为棱长为2的正方体
棱
、
上的动点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
A.线段![]() |
B.三棱锥![]() ![]() |
C.直线![]() ![]() ![]() |
D.当![]() ![]() ![]() ![]() ![]() |
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名校
7 . 如图,在棱长为2的正方体
中,已知M,N,P分别是棱
,
,
的中点,Q为平面
上的动点,且直线
与直线
的夹角为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ce50ba5e349425274f05d46d120a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83f995d8b97b790ba7b5e934c7cbd4a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69a7bcc1efb8a2ff57d64b6d057da463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
A.![]() ![]() |
B.平面![]() ![]() |
C.点Q的轨迹长度为![]() |
D.能放入由平面PMN分割该正方体所成的两个空间几何体内部(厚度忽略不计)的球的半径的最大值为![]() |
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|
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7卷引用:广东省广州市2024届高三上学期调研测试数学试题(B)
广东省广州市2024届高三上学期调研测试数学试题(B)湖北省黄石市部分学校2023-2024学年高二上学期12月阶段性训练数学试题江苏省南通市名校联盟2024届高三上学期12月学业质量联合监测数学试题湖南省长沙市长郡中学2024届高三上学期期末适应性考数学试题(已下线)空间几何体(已下线)第二章 立体几何中的计算 专题四 空间几何体截面问题 微点4 截面在解题中的作用【培优版】湖南师范大学附属中学2023-2024学年高三下学期第一次模拟数学试卷
名校
解题方法
8 . 如图,在正方体
中,E为棱
的中点.动点P沿着棱
从点D向点C移动,对于下列三个结论:
①存在点P,使得
;
②
的面积越来越小;
③四面体
的体积不变.
其中,所有正确结论的个数是( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/e05efe2d-0405-448d-b1e8-099399b0c636.png?resizew=165)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
①存在点P,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/656aceec19543470bd58ed3d304d155d.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c1b7f8c6e4793af4336d02addfbfbb.png)
③四面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6738d05f0c7e4f0076fd5c094a4fb51c.png)
其中,所有正确结论的个数是( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/e05efe2d-0405-448d-b1e8-099399b0c636.png?resizew=165)
A.0 | B.1 | C.2 | D.3 |
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|
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|
2卷引用:北京市海淀区北京理工大附中高三上学期12月练习数学试题
名校
解题方法
9 . 如图,在三棱柱
中,四边形
为正方形,四边形
为菱形,且
,平面
平面
,点
为棱
的中点.
;
(2)棱
(除两端点外)上是否存在点
,使得二面角
的余弦值为
,若存在,请求出
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac61c24f99a4e466f1e2ea011893866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b50457924bc12b20b88f5e85cb0ac73e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0671b4776e142e17a79af5b3f0378ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98413205ebd1c689855bd6ba189156c8.png)
(2)棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2461406d3672cd70cb59ec7f166feaa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83303d3784492506fc44f2b4d6b07bc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78e9600950fc88fca5cf6b015d461a00.png)
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|
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2卷引用:安徽省六安市第一中学2024届高三上学期12月月考数学试题
名校
10 . 在棱长为
的正方体
中,点
,
,
,
分别为线段
,
,
,
的中点,点
为线段
的动点,则下列说法正确的是___________ .
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/7a010049-e6eb-4642-bce4-aa68a11da773.png?resizew=169)
①异面直线
与
所成角的余弦值为
;②当
为线段
的中点时,点
,
,
,
四点共面:③对任意点的点
,都有平面
平面
;④三棱锥
的外接球的表面积为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/7a010049-e6eb-4642-bce4-aa68a11da773.png?resizew=169)
①异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63174f7275c3804fc430c7c36a5ab265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc8dc257bf555c87fd0ad0800e5084b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45160df4f6acbb62c862978ccc779d1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa3da9085d439248fee8e3ea2d87741a.png)
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