名校
解题方法
1 . 已知三棱锥,
,
为棱
上一点,且
,过点
作平行于直线
和
的平面
,分别交棱
于
.下列说法正确的是( )
A.四边形![]() |
B.四边形![]() |
C.四边形的![]() |
D.当![]() ![]() ![]() |
您最近一年使用:0次
2023-05-29更新
|
797次组卷
|
5卷引用:重庆市南开中学校2023届高三第十次质量检测数学试题
重庆市南开中学校2023届高三第十次质量检测数学试题江西省萍乡市安源中学2022-2023学年高二下学期期中考试数学试题(已下线)重难点突破05 立体几何中的常考压轴小题(七大题型)-1(已下线)考点17 立体几何中的定值问题 2024届高考数学考点总动员【讲】(已下线)8.6.2 直线与平面垂直(第1课时)直线与平面垂直的判定(分层作业)-【上好课】
2 . 如图,在四棱锥
中,底面
是边长为
的正方形,侧面
为等腰直角三角形,且
,点
为棱
上的点,平面
与棱
交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/20/09bdcc80-e0b1-4e87-904b-91e9d73ddd4b.png?resizew=152)
(1)求证:
;
(2)从条件①、条件②、条件③这三个条件中选择两个作为已知,求平面
与平面
所成锐二面角的大小.
条件①:
;
条件②:平面
平面
;
条件③:
.
![](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/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96c0afa541ea653e6fa345ba93b287c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fa3254460ecbacecb3e57c5dce227f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/20/09bdcc80-e0b1-4e87-904b-91e9d73ddd4b.png?resizew=152)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd6020b78ff385667b30088ecadeadd3.png)
(2)从条件①、条件②、条件③这三个条件中选择两个作为已知,求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e08c14e87a2bcf7090eab2fea73667d2.png)
条件①:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338c6c83ab4abc895ac36ab888a55be6.png)
条件②:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
条件③:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65355f6a872f7148e4efd9e3bf877860.png)
您最近一年使用:0次
2023-05-12更新
|
988次组卷
|
4卷引用:重庆市2023届高三考前押题数学试题
名校
3 . 下列说法正确的是( )
A.圆台的任意两条母线延长后一定交于一点 |
B.空间中没有公共点的两条直线一定平行 |
C.过一个点以及一条直线可以确定唯一一个平面 |
D.若直线![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
名校
解题方法
4 . 如图所求,四棱锥
,底面
为平行四边形,
为
的中点,
为
中点.![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
平面
;
(2)已知
点在
上满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
平面
,求
的值.
![](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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9efe66d99f813c6b1387392186822bb.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13a1be205bf5955cb569d5eabde0eebb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced22fbe85d4a749c7b0b6bbae3ea3e7.png)
您最近一年使用:0次
2023-04-21更新
|
6254次组卷
|
11卷引用: 重庆市巴蜀中学校2023届高三下学期4月月考数学试题
重庆市巴蜀中学校2023届高三下学期4月月考数学试题浙江省A9协作体2022-2023学年高一下学期期中联考数学试题(已下线)第八章:立体几何初步 重点题型复习(2)(已下线)重难点专题04 空间直线平面的平行-【同步题型讲义】广东省阳江市2022-2023学年高二下学期期末数学试题广东省韶关市广东北江实验中学2022-2023学年高一下学期期中数学试题(已下线)10.3 直线与平面间的位置关系(第1课时)(八大题型)(分层练习)-2023-2024学年高二数学同步精品课堂(沪教版2020必修第三册)(已下线)第03讲 直线、平面平行的判定与性质(八大题型)(讲义)(已下线)点线面之间的位置关系(已下线)8.5空间直线、平面的平行——课后作业(基础版)江苏省无锡市市北高级中学2023-2024学年高一下学期期中考试数学试题
名校
5 . 如图,在三棱柱
中,四边形
是边长为4的菱形,
,点D为棱AC上的动点(不与A、C重合),平面
与棱
交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/26/61fc77f8-80bb-4839-bcdc-3801ab501572.png?resizew=186)
(1)求证
;
(2)若平面
平面
,
,判断是否存在点D使得平面
与平面
所成的锐二面角为
,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac61c24f99a4e466f1e2ea011893866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae617fbbfc82b69086f5184bd5cbca26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fefd737df2c1884834312b4c4f1a16c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/26/61fc77f8-80bb-4839-bcdc-3801ab501572.png?resizew=186)
(1)求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a2f55320edad0d0e73df2877a38538.png)
(2)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d7090639341730951c1bc3c9b6164e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac61c24f99a4e466f1e2ea011893866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f70d708336d4f15e7fca0b26acb353b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b7b7793d29d66dfdd89e7a6564a35c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ea6d2a253bdcecb8608b4004ebd68c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
您最近一年使用:0次
2023-03-24更新
|
1542次组卷
|
5卷引用:重庆市万州第二高级中学2023届高三下学期第四次质量检测数学试题
名校
6 . 如图①,在等腰直角三角形
中,
分别是
上的点,且满足
.将
沿
折起,得到如图②所示的四棱锥
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/30/8cb8d241-d5f8-4267-8552-8b44da6a4fc1.png?resizew=278)
(1)设平面
平面
,证明:
⊥平面
;
(2)若
,求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e230d68009af8089d421a360a3d42373.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e675a92cad72c65aa4071b9d9e226090.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebe7eaf967808dad0a184eeedfa27721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d631f45bc652539853f236952afa5bbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0ac36c7ac328d903073739b8dcc0531.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/30/8cb8d241-d5f8-4267-8552-8b44da6a4fc1.png?resizew=278)
(1)设平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8dc5f056a7b84dc39d5ce46e615e91d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/304d6b84040aa3ec0078de3451f02db7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e106f4233be16e98f2c1bf9f1635622.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fb4e94b009c6502fba0c730fe7e2c59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4739ad948445af72d585fe29c745929b.png)
您最近一年使用:0次
2023-01-15更新
|
1590次组卷
|
6卷引用:重庆市两江育才中学2023-2024学年高二上学期第一学月质量监测数学试题
重庆市两江育才中学2023-2024学年高二上学期第一学月质量监测数学试题四川省成都市2023届高三第一次诊断性检测数学(理科)试题(已下线)四川省巴中市2023届高三“一诊”考试数学(理)试题变式题16-20广东湛江市2022-2023学年高二下学期期末数学试题河南省商丘市宁陵县高级中学2023-2024学年高二上学期第一次考试数学试题(已下线)模型2 翻折模型(高中数学模型大归纳)
名校
7 . 如图,边长是6的等边三角形
和矩形
.现以
为轴将面
进行旋转,使之形成四棱锥
,
是等边三角形
的中心,
,
分别是
,
的中点,且
,
面
,交
于
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/28/3197f79c-594b-42ed-a13b-b61964f1bf7d.png?resizew=233)
(1)求证
面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e74395b07e8153a0ef0bbcb5881013f.png)
(2)求
和面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2db2b1c641b93caae9b7a82441e4ba70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f6719c1d339ec50a9bf36b26af7258b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a78b6fb582468bdd5c3afa5461aefce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/28/3197f79c-594b-42ed-a13b-b61964f1bf7d.png?resizew=233)
(1)求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d1ed33ef4004d6a7d2eeb6ccd113479.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e74395b07e8153a0ef0bbcb5881013f.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e74395b07e8153a0ef0bbcb5881013f.png)
您最近一年使用:0次
2023-01-14更新
|
2422次组卷
|
7卷引用:重庆市2023届高三下学期3月月度质量检测数学试题
重庆市2023届高三下学期3月月度质量检测数学试题辽宁省葫芦岛市第一高级中学2022-2023学年高三上学期期末数学试题第8章 立体几何初步 章末测试(基础)-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)专题8.16 空间角大题专项训练(30道)-2022-2023学年高一数学举一反三系列(人教A版2019必修第二册)(已下线)13.2.3 直线和平面的位置关系(1)(已下线)第04讲 利用几何法解决空间角和距离19种常见考法归类(2)(已下线)模块五 期末重组篇 专题7
名校
解题方法
8 . 三棱台
的底面是正三角形,
平面
,
,
,
,E是
的中点,平面
交平面
于直线l.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/05030a34-c5f6-4325-b827-139a37c4caf6.png?resizew=155)
(1)求证:
;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/570f8b295ee0c7c60e6fe1dbf054ff52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6db57eca2a7cbd91bc57372592580a76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d365ce9f4bacc4d4bb15dbdb5306a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/05030a34-c5f6-4325-b827-139a37c4caf6.png?resizew=155)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/650f79ce93087959934d79c35b89582f.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d365ce9f4bacc4d4bb15dbdb5306a5.png)
您最近一年使用:0次
2022-12-27更新
|
1648次组卷
|
8卷引用:重庆市长寿中学校2022-2023学年高二上学期期末数学试题
名校
解题方法
9 . 在正方体
中,
是棱
的中点,
是底面
内(包括边界)的一个动点,若
平面
,则异面直线
与
所成角的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8456cee87c4e22351affc28f3a73a0f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00a28be4d5a16cf245f6fa7c4088fee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc5c19ac440746be97d8b46af5d288a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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2022-10-26更新
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2卷引用:重庆市荣昌中学2023-2024学年高二上学期第一次月考数学试题
名校
解题方法
10 . 如图所示,在正方体
中,点F是棱
上的一个动点(不包括顶点),平面
交棱
于点E,则下列命题中正确的是( )
![](https://img.xkw.com/dksih/QBM/2022/5/17/2981554522841088/2982714735689728/STEM/ecc89c136faa45ffadcc3b56aeb74c59.png?resizew=160)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c241f900cb6ed341c137a3d71216a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/2022/5/17/2981554522841088/2982714735689728/STEM/ecc89c136faa45ffadcc3b56aeb74c59.png?resizew=160)
A.存在点F,使得![]() |
B.对于任意点F,都有直线![]() ![]() |
C.对于任意点F,都有平面![]() ![]() |
D.当点F由![]() ![]() |
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7卷引用:重庆市朝阳中学2022-2023学年高二下学期期中数学试题
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