名校
解题方法
1 . 如图,在棱长为1的正方体
中,
分别是棱
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/4/4d605e6e-4af5-468f-bc93-75247c12f1bf.png?resizew=180)
(1)证明:
共面;
(2)求四边形
的周长;
(3)求多面体
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef213fda60b1836a0aecc4cbde9f216d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc82b0328a056f8f0d897e067bfd5fe.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/4/4d605e6e-4af5-468f-bc93-75247c12f1bf.png?resizew=180)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f7e90f2d2d837e8dd4f6a64b7c35f21.png)
(2)求四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/935ca9c4d7d23bafed1fede40f16d0e9.png)
(3)求多面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d351cd3a2ee1adf06498fd1cc066be3.png)
您最近一年使用:0次
2 . 如图,矩形
中,
,
,将
沿
折起,使得点
到达点
的位置,
.
平面
;
(2)求异面直线
与
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7aeb2a8d1437eeb4482c3b6ad9f315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08aa6fd52f3933cbded9ce8c880b4a10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2022-12-03更新
|
566次组卷
|
5卷引用:黑龙江哈尔滨市第九中学校2021—2022年高一下学期期中数学试题
黑龙江哈尔滨市第九中学校2021—2022年高一下学期期中数学试题(已下线)8.6.2 空间角与空间距离(精练)-2022-2023学年高一数学一隅三反系列(人教A版2019必修第二册)(已下线)8.6.3平面与平面垂直(第1课时平面与平面垂直的判定定理)(精练)-【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)8.6.3平面与平面垂直——课后作业(提升版)(已下线)必考考点8 立体几何中综合问题 专题讲解 (期末考试必考的10大核心考点)
解题方法
3 . 在空间四边形
中,
、
分别为
、
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/909a20c2-7732-4167-8678-95ffd85f417d.png?resizew=157)
(1)当异面直线
与
所成角为
,求
的长;
(2)当
时,求异面直线
与
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c2b18ea29078825bdb3dd56f453545b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/909a20c2-7732-4167-8678-95ffd85f417d.png?resizew=157)
(1)当异面直线
![](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/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd25d0d385e8baacf8815fe370673cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
您最近一年使用:0次
名校
4 . 图1是由矩形
,
和菱形
组成的一个平面图形,其中
,
,
.将该图形沿
,
折起使得
与
重合,连接
,如图2.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/16/405a154a-5a71-41f3-85b6-164b4432508d.png?resizew=278)
(1)证明:图2中C,D,E,G四点共面;
(2)求图2中二面角
的平面角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ddcd5435b39971f897210aa0b66a259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e7ba6e267dde1a65a98f9f36b585ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6eaeff3c3502abbcf1626bac6a9de96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/16/405a154a-5a71-41f3-85b6-164b4432508d.png?resizew=278)
(1)证明:图2中C,D,E,G四点共面;
(2)求图2中二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a17158a669a634e3db538ce76471950.png)
您最近一年使用:0次
2022-07-09更新
|
1424次组卷
|
6卷引用:“三省三校”(南宁二中、南充中学、遵义四中)2023届高三第一次联考数学(理)试题
“三省三校”(南宁二中、南充中学、遵义四中)2023届高三第一次联考数学(理)试题(已下线)突破1.4 空间向量的应用(课时训练)广西桂林市联盟校2023届高三上学期9月入学统一检测数学(理)试题(已下线)7.5 空间向量求空间角(精讲)(已下线)考向28利用空间向量求空间角(重点)四川省宜宾市叙州区第一中学校2024届高三下学期开学考试数学(理)试题
2023高三·全国·专题练习
解题方法
5 . 如图,在长方体
中,E,F分别是
和
的中点.证明:E,F,D,B四点共面.
![](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/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/f812e79b-a51f-46fe-b09c-2c5363c10253.png?resizew=165)
您最近一年使用:0次
2022-07-09更新
|
1136次组卷
|
5卷引用:专题34:空间点、直线、平面之间的位置关系-2023届高考数学一轮复习精讲精练(新高考专用)
(已下线)专题34:空间点、直线、平面之间的位置关系-2023届高考数学一轮复习精讲精练(新高考专用)(已下线)专题29 空间点、直线、平面之间的位置关系-1(已下线)8.4.1 平面 (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)8.4 空间点、直线、平面之间的位置关系(1)-2022-2023学年高一数学《考点·题型·技巧》精讲与精练高分突破系列(人教A版2019必修第二册)(已下线)第八章立体几何初步知识1
6 . 如图所示,在棱长为2的正方体ABCD﹣A1B1C1D1中E,F分别是AB,CC1的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/ba3b1514-fc34-4140-8f75-49dc30c56588.png?resizew=156)
(1)求异面直线A1E与D1F所成的角的大小;
(2)求三棱锥A1﹣D1EF的体积.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/ba3b1514-fc34-4140-8f75-49dc30c56588.png?resizew=156)
(1)求异面直线A1E与D1F所成的角的大小;
(2)求三棱锥A1﹣D1EF的体积.
您最近一年使用:0次
7 . 正方体ABCD—
中,P、Q分别是
与AB的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/dd89d699-b9d3-4b95-94d3-91c44c0d8df3.png?resizew=150)
(1)求异面直线A1Q与
所成角的大小(结果用反三角形式表示)
(2)若直三棱柱
的体积为
,求四棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/dd89d699-b9d3-4b95-94d3-91c44c0d8df3.png?resizew=150)
(1)求异面直线A1Q与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
(2)若直三棱柱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25b91f767ad04afa2b8b8a273ee9a747.png)
您最近一年使用:0次
名校
解题方法
8 . 如图在棱长为2的正方体
中,点
是
的中点,求异面直线
和
所成的角的余弦值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff7ddbb49c644bf06ccbad885ba2c84a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/252053b853152bd294a8315debd00b92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11450be04a7703124c09f515ffac6327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9756b7c2a9f0cb5a1b025ad4821abdcd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/24/842f8160-f017-4e37-b2c9-db6588bee5eb.png?resizew=161)
您最近一年使用:0次
9 . 如图所示,在四棱柱
中,底面
是等腰梯形,
,
,
,侧棱
⊥底面
且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/f44ca6e0-bf5d-4599-bfdf-ff928725ac24.png?resizew=173)
(1)指出棱
与平面
的交点
的位置(无需证明);
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff7ddbb49c644bf06ccbad885ba2c84a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7db886994f0a7ddfeb0fe2d7099d4498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb8781b3e04f90bde1fd8a96075ab932.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/161f651ef002ac85870d46b04347b54f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5493b3fbfbf3d2ec8c57fe228d8047cf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/f44ca6e0-bf5d-4599-bfdf-ff928725ac24.png?resizew=173)
(1)指出棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbb16f7dbc4b9993c4efa0764df1d8ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69c66600644e8bdff1728bf2c7e5375.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/252053b853152bd294a8315debd00b92.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9dcf6c319174c9ea2b1ceaed1649a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69c66600644e8bdff1728bf2c7e5375.png)
您最近一年使用:0次
2022-10-19更新
|
483次组卷
|
3卷引用:广西2022届高三高考桂柳鸿图综合模拟金卷(2)数学(文)试题
10 . 边长为1的正方体
中,E为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/941d525d-39ef-470c-a0d2-273bbcdbda22.png?resizew=157)
(1)求异面直线BE和
所成角的正切值.
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/941d525d-39ef-470c-a0d2-273bbcdbda22.png?resizew=157)
(1)求异面直线BE和
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50ea1efba56e577f2a289b4be22bbc73.png)
您最近一年使用:0次
2023-02-28更新
|
463次组卷
|
4卷引用:四川省成都市盐道街中学2020-2021学年高一下学期6月月考文科数学试题
四川省成都市盐道街中学2020-2021学年高一下学期6月月考文科数学试题(已下线)8.4 空间点、直线、平面之间的位置关系(1)-2022-2023学年高一数学《考点·题型·技巧》精讲与精练高分突破系列(人教A版2019必修第二册)安徽省安庆九一六学校2022-2023学年高一下学期第四次调研考试数学试题(已下线)核心考点06空间点、直线、平面的位置关系-【满分全攻略】2022-2023学年高一数学下学期核心考点+重难点讲练与测试(人教A版2019必修第二册)