解题方法
1 . 已知正方体
的棱长为2,点M,N分别为棱
的中点,点
为四边形
(含边界)内一动点,且
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b53e1d6a86a36dd76b41004af795d901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a7967ac1132d836e6a2ca6af5790521.png)
A.![]() ![]() |
B.点![]() ![]() |
C.存在点![]() ![]() ![]() |
D.点![]() ![]() ![]() |
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解题方法
2 . 如图,在棱长为4的正方体
中,
为棱
的中点,
,过点
的平面截该正方体所得的截面为
,则( )
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8cabbfce2c5459fa4e35d737c52ca41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b861c59576112ec3a816c73a23bba541.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0047f659c182291c84c224df6b5e993f.png)
A.不存在![]() ![]() ![]() |
B.当平面![]() ![]() ![]() |
C.线段![]() ![]() |
D.当![]() ![]() |
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解题方法
3 . 如图,在棱长为2的正方体
中,
为正方体的中心,
为
的中点,
为侧面正方形
内一动点,且满足
平面
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7253ffd3fc633d861810ee2e872188b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1df970d8b2fcbb38bfac1dc33da9179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2a0a3bb566b5d2404e4bb823abddfa9.png)
A.三棱锥![]() ![]() |
B.动点![]() ![]() |
C.三棱锥![]() |
D.若过![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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4 . 如图,已知圆柱母线长为4,底面圆半径为
,梯形
内接于下底面圆,
是直径,
,过点
向上底面作垂线,垂足分别为
,点
,
分别是线段
上的动点,点
为上底面圆内(含边界)任意一点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/597f3aedca309efba342bd8dace25b7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c82a10b4f0c9323d726804c89dd9548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d659d5601d47fc8e580788f8bfc2cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6a5f13f3212930da75becd1f57bf542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
A.若平面![]() ![]() ![]() ![]() |
B.若平面![]() ![]() ![]() |
C.![]() |
D.当点![]() ![]() ![]() ![]() ![]() |
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解题方法
5 . 在正方体
中,
,点
满足
,其中
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f9dd1458186cfbdf0701ba835572721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faf326510f76018d51105bb42c195ca3.png)
A.当![]() ![]() ![]() ![]() |
B.若![]() ![]() ![]() ![]() ![]() |
C.当![]() ![]() ![]() |
D.当![]() ![]() ![]() |
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解题方法
6 . 如图,在长方体
中,
,
,点
在矩形
内运动(包括边界),
,
分别为
的中点,若
平面
,当
取得最小值时,
的余弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5213d6ac74fb6044cab6927a3d2acaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/334bd1a151c0a42ca813cb6b839ce45c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24579dca7ff1542ae019fc36110dddbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ebb01953c4ac7afb87497b9454579e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0ff310aabd2282b539537ebed3f788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3af6c6dd9b34c7b4a1d1cff73f7d140.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-05-04更新
|
736次组卷
|
3卷引用:江苏省无锡市辅仁高级中学2023-2024学年高二下学期期中考试数学试题
江苏省无锡市辅仁高级中学2023-2024学年高二下学期期中考试数学试题江苏省无锡市辅仁高级中学2023-2024学年高一下学期期中考试数学试题(已下线)6.4.2平面与平面平行-【帮课堂】(北师大版2019必修第二册)
名校
解题方法
7 . 如图,在正方体
中,
是棱
的中点,
是侧面
上的动点,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f348ed8a1690d3ed02aa64459ca50.png)
平面
.设
与平面
所成的角为
与
所成的角为
,那么下列结论正确的是( )
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f348ed8a1690d3ed02aa64459ca50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2331bccb6ebf5b9fd639df994f575a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f348ed8a1690d3ed02aa64459ca50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79ae4125d393486e4ff19c433b37a262.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
A.![]() ![]() ![]() |
B.![]() ![]() ![]() |
C.![]() ![]() ![]() |
D.![]() ![]() ![]() |
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解题方法
8 . 在长方体
中,已知
,点
满足
,其中
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17d20d9a8058985d9847ddd99046fdb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6113c39be6aaad6e63ec913aba817411.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96e72bff1ee3595c559dcb1a54d4f173.png)
A.当![]() ![]() |
B.当![]() ![]() |
C.当![]() ![]() ![]() |
D.当![]() ![]() ![]() |
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名校
9 . 如图,已知四棱台
的上、下底面分别是边长为2和4的正方形,平面
⊥平面ABCD,
,点P是棱
的中点,点Q在棱BC上.
,证明:
平面
;
(2)若二面角
的正弦值为
,求BQ的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7253ffd3fc633d861810ee2e872188b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b90595662af9a1936e1e703462cb69b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc862687ca2b31b20dd37eb5375cae6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b1a378a3a4660eb1ece52085a9b44d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
(2)若二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d8c5362138fde892955c34074ac5d5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4508b5e21a3e74ea980c5b0b691cf689.png)
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|
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6卷引用:江苏省南京市田家炳高级中学2023-2024学年高二下学期期中考试数学试卷
江苏省南京市田家炳高级中学2023-2024学年高二下学期期中考试数学试卷江苏省南京市、盐城市2024届高三第一次模拟考试数学试题(已下线)第23题 立体几何大题(高三二轮每日一题) 安徽省六安第一中学2024届高三下学期质量检测数学试卷(一)2024届山东省泰安肥城市高考仿真模拟(二)数学试题(已下线)专题3 由二面角求线段长问题(解答题一题多解)
2024高三·全国·专题练习
10 . 如图,已知四边形
是矩形,
平面
,且
,M、N是线段
、
上的点,满足
.
,求证:直线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
平面
;
(2)是否存在实数
,使直线
同时垂直于直线
,直线
?如果有请求出
的值,否则请说明理由;
(3)若
,求直线
与直线
所成最大角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/0b80ee363635d73f601654339028daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8cbd23176d1f96deb84372973e16a63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500d68f2678989a5ce7431cfd51b019d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb31ef428bd9de9bc875b343feded3c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/564376a88fa74090de9f7694226a6184.png)
(2)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500d68f2678989a5ce7431cfd51b019d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
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5卷引用:期中考试押题卷(考试范围:第6-7章)-【帮课堂】2023-2024学年高二数学同步学与练(苏教版2019选择性必修第二册)
(已下线)期中考试押题卷(考试范围:第6-7章)-【帮课堂】2023-2024学年高二数学同步学与练(苏教版2019选择性必修第二册)(已下线)【江苏专用】高二下学期期末模拟测试B卷(已下线)专题01 空间向量与立体几何解答题必考题型(6类题型)-备战2023-2024学年高二数学下学期期末真题分类汇编(江苏专用)(已下线)第二章 立体几何中的计算 专题一 空间角 微点3 异面直线所成角综合训练【培优版】江苏省镇江市实验高级中学2023-2024学年高一下学期5月月考数学试卷