1 . 如图,若长方体
的底面是边长为2的正方形,高为
是
的中点,则正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/917b057d142e0b8421a9cf83ddec7095.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
A.![]() | B.平面![]() ![]() |
C.三棱锥![]() ![]() | D.三棱锥![]() ![]() |
您最近一年使用:0次
2024-03-21更新
|
422次组卷
|
6卷引用:山东省烟台第一中学2023-2024学年高二下学期2月月考数学试题
解题方法
2 . 如图,棱长为1的正方体
中,
为线段
上动点(包括端点).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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/45d2b7e0-e83e-48a8-9f02-5d46cbdba3e3.png?resizew=157)
A.当点![]() ![]() ![]() ![]() |
B.当点![]() ![]() ![]() |
C.当点![]() ![]() ![]() ![]() ![]() |
D.点![]() ![]() ![]() |
您最近一年使用:0次
解题方法
3 . 已知三棱锥
中,
,
平面
,
,则
到平面
的距离为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4278c0911e7df78965e78cff69cac5f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca6c58cd96a02af69710fe1cd2c6d57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4317430d5a2b61d9a2a88b73e7d7ad39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb802b0cd77d772dceff0d9ff6c879ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/183ec02812ee8cda06c714eb3cee0ad1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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2024-01-07更新
|
147次组卷
|
2卷引用:山东省聊城市临清市实验高级中学2023-2024学年高二上学期12月月考数学试题
名校
4 . 在正方体
中,
,
分别为
的中点,
是
上的动点,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/2/3417f302-5f3e-42c4-acf9-0b8f42eed7b1.png?resizew=156)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d00bd0bd954971c2d9c9245763119a71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/2/3417f302-5f3e-42c4-acf9-0b8f42eed7b1.png?resizew=156)
A.![]() ![]() |
B.平面![]() ![]() |
C.三棱锥![]() ![]() |
D.过![]() ![]() ![]() |
您最近一年使用:0次
5 . 如图正方形BCDE的边长为
,已知
,将直角
沿BE边折起,
点在面BCDE上的射影为
点,则翻折后的几何体中有如下描述:
(1)
与
所成角的正切值是
;
(2)
的体积是
;
(3)
;
(4)平面
平面
;
(5)直线BA与平面ADE所成角的正弦值为
.
其中正确的叙述有______ (写出所有正确结论的编号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7f2125dfe51596f77b060572f706cbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/17/143f7df4-a816-41bb-85ed-968bb90f9217.png?resizew=94)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3db5169270ae5637c510cf7675c0758a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb370f79414cec31a7716b1b0fa8277c.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f79863ffcfa63117ca6741b20a48e69.png)
(4)平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bde1e200d1dd5ddc433c876c9d2f688c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
(5)直线BA与平面ADE所成角的正弦值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827ccf0c04aa941ba20d5f4c6068b46b.png)
其中正确的叙述有
您最近一年使用:0次
名校
解题方法
6 . 在平行六面体
中,
,
,若
,其中
,
,
,则下列结论正确的为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/991451c5002137302527700e195220e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb66690bc5b8123d5eafe781d3c9a58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d472051d1f6bce23c22a55c517515e08.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/900dea22ff8af341d08262f4b76c6953.png)
A.若点![]() ![]() ![]() | B.若![]() ![]() |
C.当![]() ![]() ![]() | D.当![]() ![]() ![]() |
您最近一年使用:0次
2023-11-23更新
|
505次组卷
|
4卷引用:山东省菏泽市鄄城县第一中学2023-2024学年高二上学期12月月考数学试题
山东省菏泽市鄄城县第一中学2023-2024学年高二上学期12月月考数学试题安徽省滁州市九校2023-2024学年高二上学期期中考试数学试卷(已下线)模块三 专题3 小题满分挑战练(1) 期末终极研习室(高二人教A版)(已下线)高二数学上学期第三次月考模拟卷(空间向量与立体几何+直线与圆的方程+圆锥曲线方程+数列)(原卷版)
名校
7 . 如图,在四棱锥
中,底面
是边长为2的正方形,侧面
为等边三角形,顶点
在底面上的射影在正方形
外部,设点
,
分别为
,
的中点,连接
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/3/ffdd15f5-0ccd-4389-a1d5-8442287af7e6.png?resizew=187)
(1)证明:
平面
;
(2)若四棱锥
的体积为
,设点
为棱
上的一个动点(不含端点),求直线
与平面
所成角的正弦值的最大值.
![](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/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/3/ffdd15f5-0ccd-4389-a1d5-8442287af7e6.png?resizew=187)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c372d059202ec388960b125d4a87dc84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fbbe7f48676298f2ee0cb1901992eaf.png)
(2)若四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c9298da3cd8b9db58692e0173f3fd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
您最近一年使用:0次
2023-11-11更新
|
339次组卷
|
3卷引用:山东省菏泽市第一中学2023-2024学年高二上学期第三次月考数学试题
名校
解题方法
8 . 在棱长为1的正方体
中,
是棱
的中点,过直线
的平面与棱
分别交于
两点,下列说法正确的是( )
![](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/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7beb3b41f243ab66df61975d712428fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/8/3c62d0b2-b2d9-42fa-b7d4-bfe6ee011a95.png?resizew=178)
A.存在点![]() ![]() |
B.当点![]() ![]() ![]() ![]() |
C.![]() |
D.线段![]() ![]() |
您最近一年使用:0次
解题方法
9 . 在棱长为2的正方体
中,点
在底面正方形
内及边界上运动,则( )
![](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/632f2bf1cd0435041fa04b01901d1c8c.png)
A.存在点![]() ![]() ![]() |
B.若![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() |
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10 . 如图,已知在棱长为2的正方体
中,点E,F,H分别是
,
,
的中点,点G是
上的动点,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/1/9259ddc4-fdaf-4503-99cf-36786dd28553.png?resizew=171)
A.![]() | B.![]() ![]() |
C.直线EF与![]() | D.三棱锥![]() ![]() |
您最近一年使用:0次