解题方法
1 . 如图,在长方体
中,
,
,E是
的中点,平面
与棱
相交于点F.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/12/2e0df4c5-71a3-47d0-b521-0264ca1dd311.png?resizew=192)
(1)求证:点F为
的中点;
(2)若点G为棱
上一点,且
,求点G到平面
的距离.
![](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/e6155f82a6f64b20085976cea9b64193.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/12/2e0df4c5-71a3-47d0-b521-0264ca1dd311.png?resizew=192)
(1)求证:点F为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
(2)若点G为棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b759a84945de16569fdee1b97ad09b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
您最近一年使用:0次
名校
解题方法
2 . 如图,已知菱形
中,
,点
为边
的中点,沿
将
折起,得到
且二面角
的大小为
,点
在棱
上,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
平面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/11/f4763f5b-0b8f-4ed9-a910-b23ddaa8444b.png?resizew=230)
(1)求
的值;
(2)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d6d164d835e67e17e38d7cd5cce4ac5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd0c32d9f3badb7e51233dd39a39fbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b6accdd9b317c922d335e44911df357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f615c1e601990cde607f0216f715d57b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231b861d6d1f1d0b9f52b041cb40eb62.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/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d67be899bc131ec1b9921ae9787c40d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae8768996ca9a0f2c5d9a19abbd54df.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/11/f4763f5b-0b8f-4ed9-a910-b23ddaa8444b.png?resizew=230)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e452a4617674cb803fec761ed0361ac.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fab6a076ed5e7a28751ac94d8a54e48.png)
您最近一年使用:0次
2023-04-10更新
|
553次组卷
|
3卷引用:江西省2023届高三教学质量监测数学(理)试题
名校
3 . 如图,
平面
,
平面
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/7/7dab7d69-2f20-4534-a438-bd9f08d7fc78.png?resizew=164)
(1)求证:
;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4c3f9dd5d0343597a7f58a1989b537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d32e76582bf550593fdef53e081225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f555fb7ea6e77a6e0fe38586a3992d50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9060f03b9ee41d70d135b1e1a8902ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27db558e8db4c957654c8e5cecd2d2dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac2e1bc36d99480493977801b166720d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/7/7dab7d69-2f20-4534-a438-bd9f08d7fc78.png?resizew=164)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e0a957a55460c72673c0f2ee90dbb3.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
您最近一年使用:0次
2023-04-06更新
|
589次组卷
|
3卷引用:湖北省襄阳市第一中学2022-2023学年高二上学期期末数学试题
湖北省襄阳市第一中学2022-2023学年高二上学期期末数学试题福建省福州第八中学2023-2024学年高二上学期期末考试数学试卷(已下线)期末测试卷01(测试范围:第1-4章数列)-2023-2024学年高二数学《重难点题型·高分突破》(人教A版2019选择性必修第二册)
2023高一·全国·专题练习
解题方法
4 . 如图,在棱长为2的正方体
中,
为棱
的中点,
,
分别是棱
,
上的动点(不与顶点重合).作出平面
与平面
的交线(要求写出作图过程),并证明:若平面
平面
,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/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abb06405623edb5c9d5f7350d79dc76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee8b5a6dbcf05f572f83f51abf7d668c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/723fee86afab63b4aa7c826e19d6954a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48d47e5be88e89d0d042c56d2d6942b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3709c4a29868ca0913bbffe73e8aaf43.png)
您最近一年使用:0次
2023-04-02更新
|
1284次组卷
|
6卷引用:第27讲 线面平行面面平行性质定理的应用2种题型
(已下线)第27讲 线面平行面面平行性质定理的应用2种题型(已下线)8.5.3 平面与平面平行(精讲)-【题型分类归纳】2022-2023学年高一数学同步讲与练(人教A版2019必修第二册)(已下线)第一章 点线面位置关系 专题一 空间平行关系的判定与证明 微点1 空间平行关系的判定与证明【培优版】(已下线)第10讲 8.5.3 平面与平面平行-【帮课堂】(人教A版2019必修第二册)(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)(已下线)11.3.3平面与平面平行-同步精品课堂(人教B版2019必修第四册)
2023高一·全国·专题练习
解题方法
5 . 如图,矩形
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c707f0202ec1aa233e1eeacc7a4587d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e4201ad1d4e25974c60439c2a561c08.png)
,平面
与棱
交于点G.求证:
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5d5f5199a80748d7a3afa1ac0c99135.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c707f0202ec1aa233e1eeacc7a4587d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e4201ad1d4e25974c60439c2a561c08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ccb204e61b8daace3f89787e8fdd39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fa3254460ecbacecb3e57c5dce227f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df55452b4b5fcdcb71f713b736f8b9e1.png)
您最近一年使用:0次
6 . 如图,在四面体
中,
为
的重心,
,
分别在棱
,
上,平面
平面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/1/33747a3c-0d82-401c-9f99-d5feb35a6654.png?resizew=184)
(1)求
的值;
(2)若
平面
,
,且
,求平面
与平面
的夹角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a908e40b6f44e44da2335cfdabb701f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/1/33747a3c-0d82-401c-9f99-d5feb35a6654.png?resizew=184)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08341fa8b1827c032f796e5f88941b78.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f9157fce2a8339d281178c7c0bccbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67585d2e2a0a8c12bcda212252cfd144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd8b25d0f7e74ecef0b830b6056305b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
您最近一年使用:0次
7 . 正方体
中,
与
交于点O,点E为
的中点,点F在
上,且平面
平面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/25/03e5494d-4f40-4c16-9abb-55458deb87df.png?resizew=163)
(1)求
的值;
(2)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5054fb79c401800c98581ca48008669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17242340518cc011403330f4e76693ee.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/25/03e5494d-4f40-4c16-9abb-55458deb87df.png?resizew=163)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f75237bb7ef73895d857959ad92dfaf5.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d533487e88ee4d31cc12089517e7a749.png)
您最近一年使用:0次
2023高一下·全国·专题练习
解题方法
8 . 如图,
平面
,
平面
,
,
,
,
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4c3f9dd5d0343597a7f58a1989b537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8ccd4181f956f6e0140bf0ab8f0716.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05e952f7b05d06917128bfecb64fe3cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9060f03b9ee41d70d135b1e1a8902ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d262480ffb55b7617f44b63f130c154a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88dac2c17c765517c2163ab43bbe1038.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
您最近一年使用:0次
2023-03-17更新
|
636次组卷
|
5卷引用:8.5.3 平面与平面平行 (精讲)(1)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)
(已下线)8.5.3 平面与平面平行 (精讲)(1)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)(已下线)8.5.3 平面与平面平行(精练)-【题型分类归纳】2022-2023学年高一数学同步讲与练(人教A版2019必修第二册)(已下线)第一章 点线面位置关系 专题一 空间平行关系的判定与证明 微点2 空间直线平行的判定与证明综合训练【基础版】(已下线)8.5.3 平面与平面平行-同步精品课堂(人教A版2019必修第二册)(已下线)第六章立体几何初步章末二十种常考题型归类(2)-【帮课堂】(北师大版2019必修第二册)
名校
解题方法
9 . 如图,直角三角形ABC中,A=60°,沿斜边AC上的高BD将△ABD折起到△PBD的位置,点E在线段CD上.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/10/189a2db1-3531-4755-a08c-5e7652ab7508.png?resizew=262)
(1)求证:PE⊥BD;
(2)过点D作DM⊥BC交BC于点M,点N为PB的中点,若
平面DMN,求
的值.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/10/189a2db1-3531-4755-a08c-5e7652ab7508.png?resizew=262)
(1)求证:PE⊥BD;
(2)过点D作DM⊥BC交BC于点M,点N为PB的中点,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28f79db7c270b6ff9fb0a538ee201cfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7558aa5068ceb3d3a35bf56422418dea.png)
您最近一年使用:0次
名校
解题方法
10 . 如图,在四棱锥
中,M为PD的中点,E为AM的中点,点F在线段PB上.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/9/fd3f013b-1a62-4901-ae6a-89bd3bf62660.png?resizew=171)
(1)取DM中点G,设平面EFG与直线PC交于点H,再从以下两个条件中选择一个作为已知,求
;
条件①:
;条件②:
∥平面ABCD.
(2)若平面
底面ABCD,
,
,
,
,求平面PAD与平面PBC所成锐二面角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/9/fd3f013b-1a62-4901-ae6a-89bd3bf62660.png?resizew=171)
(1)取DM中点G,设平面EFG与直线PC交于点H,再从以下两个条件中选择一个作为已知,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/685856a9b104bd06a26fa1954f2499e8.png)
条件①:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6afaa76e94414331574f42873e2b12c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
(2)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342d452a7b850cd3a15b23619ad39bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/795d1f8e68aee16240a4018dcbcb1e08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0ce06dbe9e1177468781ba4aff85ffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e64eb3310e5d1aaee7ca7a7889092798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41cd5c4f8b106d01e0e431078e1a468b.png)
您最近一年使用:0次
2023-03-07更新
|
488次组卷
|
2卷引用:北京市人大附2023届高三下学期开学考数学试题