名校
1 . 如图在几何体
中,底面
为菱形,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/3/3c437164-6d20-497e-86fb-61d16199cba1.png?resizew=156)
(1)判断
是否平行于平面
,并证明;
(2)再从条件①、条件②、条件③这三个条件中选择一个作为已知,求:
(ⅰ)平面
与平面
所成角的大小;
(ⅱ)求点A到平面
的距离.
条件①:面
面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500df0e782bb081e608f4bc1d576afcf.png)
条件②:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/509d8dd6031dc0ef92075877e53fe201.png)
条件③:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34323137ddb894a70d97511aa5fe6f98.png)
注:如果选择多个条件分别作答,按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59e89556992cbfd7043330ac7421d342.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f9a68a9b78590c9a9bc1585298705a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8b1472e121da0ae5550329cfda5f0a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18b2bd08b9e6023789c848cc382cb619.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/3/3c437164-6d20-497e-86fb-61d16199cba1.png?resizew=156)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6261790c66cc71ee3898afabad0c09f4.png)
(2)再从条件①、条件②、条件③这三个条件中选择一个作为已知,求:
(ⅰ)平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6261790c66cc71ee3898afabad0c09f4.png)
(ⅱ)求点A到平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6261790c66cc71ee3898afabad0c09f4.png)
条件①:面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bde1e200d1dd5ddc433c876c9d2f688c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500df0e782bb081e608f4bc1d576afcf.png)
条件②:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/509d8dd6031dc0ef92075877e53fe201.png)
条件③:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34323137ddb894a70d97511aa5fe6f98.png)
注:如果选择多个条件分别作答,按第一个解答计分.
您最近一年使用:0次
2 . 如图,在棱长为2的正方体
中,点
在截面
上(含边界),则线段
的最小值等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f4525d2a5cfdd4c82f62c28177d6cf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-01-19更新
|
377次组卷
|
3卷引用:北京市东直门中学2024届高三下学期开学检测数学试题
北京市东直门中学2024届高三下学期开学检测数学试题上海市控江中学2023-2024学年高二上学期期末考试数学试题(已下线)核心考点7 立体几何中角和距离 B提升卷 (高一期末考试必考的10大核心考点)
3 . 如图,在棱长为2的正方体
中,
为棱
的中点,
为棱
上一动点.给出下列四个结论:
①存在点
,使得
平面
;
②直线
与
所成角的最大值为
;
③点
到平面
的距离为
;
④点
到直线
的距离为
.
其中所有正确结论的个数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/4/a86a51e6-2969-40aa-8bc7-121ee837a94b.png?resizew=168)
![](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/394c5d2f55221975503be8aa18022480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
①存在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f9d682e5d3cc8573574d8d11636758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea848cd2aa3a464618020475097949fc.png)
②直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49f8a63ddbca52039fa9ab44cda6b29.png)
③点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea848cd2aa3a464618020475097949fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
④点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38be38165dc2307982fc57001a447c56.png)
其中所有正确结论的个数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/4/a86a51e6-2969-40aa-8bc7-121ee837a94b.png?resizew=168)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
2024-01-18更新
|
294次组卷
|
2卷引用:北京市门头沟区大峪中学2023-2024学年高二下学期开学考试数学试题
4 . 如图,已知棱长为3的正方体
,在平面
的同侧,顶点A在平面
上,顶点B,D到平面
的距离分别为1和
,则顶点
到平面
的距离为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/5d8ddf3a-c501-44a3-a756-cf5c0dfb1b7f.png?resizew=212)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/5d8ddf3a-c501-44a3-a756-cf5c0dfb1b7f.png?resizew=212)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-01-03更新
|
378次组卷
|
3卷引用:北京市第八十中学2024届高三下学期开学考试数学试卷
2023·全国·模拟预测
名校
5 . 如图,正方体
的棱长为
,点
是平面
内的动点,
,
分别为
的中点,若直线
与直线
所成的角为
,且
,则动点
的轨迹所围成的图形的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9f05389f5270a557638d69fc0b0f9f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13cfdc6224181d44e63aab43ddaf07ef.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/50422a2a25859fadc8a1ab4ad1c7cfc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/750303cc97d19b55b5acbc9f162909c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/1/0b1a1060-914d-4895-882c-655bf8b382a1.png?resizew=156)
您最近一年使用:0次
6 . 如图,在四棱锥
中,底面
是正方形,
底面
为
的中点,
为
内一动点(不与
三点重合).给出下列四个结论:
与
所成角的大小为
;②
;③
的最小值为
;④若
,则点
的轨迹所围成图形的面积是
.
其中所有正确结论的序号是__________ .
![](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/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82119cdf2c6d23099171a823a7a2ac4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acee03d4bb4667b6c345221b6c9b0fa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84ce410e23643e80c9d205f8e86a1ffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20b69099d2b74ffbb1f365e1468bd8fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd22cf7915d8ae1e5f85a83c6e89e15a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e9e953a4a5f98c96bbe67cbaadf76d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827ccf0c04aa941ba20d5f4c6068b46b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66bf51786193eb8dfe053bdb8ac006a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c8ae071199874d9d74a4919a58902f7.png)
其中所有正确结论的序号是
您最近一年使用:0次
2023-07-16更新
|
541次组卷
|
7卷引用:北京市大峪中学2023-2024学年高二上学期开学考试数学试题
北京市大峪中学2023-2024学年高二上学期开学考试数学试题北京市昌平区2022-2023学年高一下学期期末质量抽测数学试题贵州省铜仁第一中学2023-2024学年高二上学期8月摸底衔接质量检测(三)数学试题【北京专用】专题15立体几何与空间向量(第四部分)-高一下学期名校期末好题汇编(已下线)模块四 专题6 暑期结束综合检测6(能力卷)(人教B)(已下线)第11章 简单几何体(压轴题专练)-2023-2024学年高二数学单元速记·巧练(沪教版2020必修第三册)(已下线)专题06 空间中点线面的位置关系6种常考题型归类(2) -期期末真题分类汇编(北京专用)
名校
解题方法
7 . 如图,在长方体
中,
,
和
交于点E,F为AB的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/28/d10cabcd-e491-44a6-a916-23a8eb044560.png?resizew=198)
(1)求证:
∥平面
;
(2)再从条件①、条件②这两个条件中选择一个作为已知,求
(i)平面CEF与平面BCE的夹角的余弦值;
(ii)点A到平面CEF的距离.
条件①:
;
条件②:直线
与平面
所成的角为
.
注:如果选择条件①和条件②分别解答,按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/480f4df0a32a910db7d39695ffd86665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87cdc08e1c4a04a18d5ecea03393e36d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/28/d10cabcd-e491-44a6-a916-23a8eb044560.png?resizew=198)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ebb05874eb3353d754af24c9974273e.png)
(2)再从条件①、条件②这两个条件中选择一个作为已知,求
(i)平面CEF与平面BCE的夹角的余弦值;
(ii)点A到平面CEF的距离.
条件①:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee522794580bdaddf952891eda7eeb06.png)
条件②:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87cdc08e1c4a04a18d5ecea03393e36d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
注:如果选择条件①和条件②分别解答,按第一个解答计分.
您最近一年使用:0次
2023-03-27更新
|
1558次组卷
|
5卷引用:北京第五中学2023-2024学年高三下学期开学检测数学试卷
北京第五中学2023-2024学年高三下学期开学检测数学试卷北京市东城区2023届高三一模数学试题专题08空间向量与立体几何北京卷专题20空间向量与立体几何(解答题)(已下线)模块七 第6套 迎接高考之必做基础热身题( 概率与立几)
名校
8 . 梯形
与梯形
所在的平面互相垂直,
,
,
,
,
,点
为棱
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/22/b63c31e3-8d65-4e80-b125-51e4331b938a.png?resizew=164)
(1)求证:
平面
;
(2)求二面角
的余弦值;
(3)设
为直线
与平面
的交点,请直接写出点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f79863ffcfa63117ca6741b20a48e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c91baecb97fadd4f8ab49e6effcbc04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19e384431d0368c4ba0e606a359d5d65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03cbf820b67429135b49f17fa8afad15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/559d73a4b23e3d7642132cab280e6beb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/22/b63c31e3-8d65-4e80-b125-51e4331b938a.png?resizew=164)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a22d6b860f06fe23618b0d3de6768fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23df84c1190b2233e3dce2e67c750642.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1d70fb53a3bc46be3e6365f5ed26496.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
9 . 如图,在棱长为1的正方体中,M,N分别为
的中点,P为正方体
表面上的动点.下列叙述正确的是( )
A.当点P在侧面![]() ![]() ![]() ![]() |
B.当点P为棱![]() ![]() |
C.当点P在棱![]() ![]() ![]() |
D.当点![]() ![]() ![]() |
您最近一年使用:0次
2023-01-04更新
|
1064次组卷
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7卷引用:北京市北京理工大学附属中学2023届高三下学期开学测试数学试题
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10 . 如图,在三棱锥O-ABC中,三条侧棱OA,OB,OC两两垂直,且OA,OB,OC的长分别为a,b,c. M为△ABC内部及其边界上的任意一点,点M到平面OBC,平面OAC,平面OAB的距离分别为a0,b0,c0,则
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ad7a9eccb5b6560fa0e80288533201b.png)
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