解题方法
1 . 如图,在四棱锥
中,底面
是菱形,
,平面
平面
,
,
,PD的中点为F.
平面
;
(2)求直线
到面
的距离.
![](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/05740f0c6071846227dc0ec177ad15e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db27b7f29d7d01b2692f217bc3079fc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f83a04565a8ebaa111894b724b0ba266.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30067b7b236d17af8a462f96a58d11bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4734735213b599a9915e1ed91a5d8ce4.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4734735213b599a9915e1ed91a5d8ce4.png)
您最近一年使用:0次
2023-01-16更新
|
1084次组卷
|
8卷引用:重庆市巫山第二中学2022-2023学年高二上学期期末数学试题
重庆市巫山第二中学2022-2023学年高二上学期期末数学试题(已下线)第8章 立体几何初步 重难点归纳总结-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)8.6.2直线与平面垂直的性质定理(第2课时)(精讲)(2)-【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)专题8.13 空间直线、平面的垂直(二)(重难点题型精讲)-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)专题10 空间角与空间距离的综合(2) - 期中期末考点大串讲(已下线)第10讲 空间的垂直关系-【寒假预科讲义】(人教A版2019必修第二册)(已下线)专题8.9 空间角与空间距离大题专项训练-举一反三系列(已下线)专题突破:空间几何体的距离问题-同步题型分类归纳讲与练(人教A版2019必修第二册)
名校
解题方法
2 . 在平面五边形
中(如图1),
是梯形,
,
,
,
,
是等边三角形.现将
沿
折起,连接
,
得四棱锥
(如图2)且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/18/0cc5a5f4-2dac-4d22-b39b-01af047ed223.png?resizew=327)
(1)求证:平面
平面
;
(2)在棱
上有点
,满足
,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9142a8490de14a87eda628ffa7e28982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25eb757d05fbff80d50c3bb8dbcb8657.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b40d0d2f3cdd8981bb792ad87efb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af260e0d98c95d1e092dc4c6d348e3ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c753cb1eb73fd8d136d00462970797.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e60673e10b708be3e65a8c916356f22.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/18/0cc5a5f4-2dac-4d22-b39b-01af047ed223.png?resizew=327)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3abb27f8d654064a92f9d7a11e586ab5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)在棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4f85a3984ff5650e5845789b3b23f99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0730e73ddbbf9184df15d3b1467e55e7.png)
您最近一年使用:0次
2023-01-15更新
|
581次组卷
|
3卷引用:重庆市育才中学校2022-2023学年高二上学期期末数学试题
重庆市育才中学校2022-2023学年高二上学期期末数学试题(已下线)第6章:空间向量与立体几何 章末检测试卷-【题型分类归纳】2022-2023学年高二数学同步讲与练(苏教版2019选择性必修第二册)云南省昆明市五华区云南师大实验中学2023-2024学年高二上学期11月月考数学试题
名校
3 . 如图,在四棱锥
中,侧面
底面
,底面
是平行四边形,
分别为线段
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/22/d12c361d-2eae-4ba7-8d9a-e752164b7865.png?resizew=210)
(1)证明:
平面
;
(2)若直线
与平面
所成角的大小为
,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235d1553f6806c1eee3b17b94d23f0f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11657095fdc31440a1368f10ea4cc2b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26b913e6fa827dcb59f0688170ca730a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eae7aa174fc508217c7a0fcb3db28b1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/22/d12c361d-2eae-4ba7-8d9a-e752164b7865.png?resizew=210)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2697046fb5056181292bcea4f7f3f8e4.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64b52e43a3c259ab111e0669cf569c7e.png)
您最近一年使用:0次
名校
4 . 如图,在直三棱柱
中,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/1df57220-7cde-4435-aae6-184db7992037.png?resizew=160)
(1)求证:平面
⊥平面
;
(2)若AC与平面
所成的角为
,点E为线段
的中点,求平面AEB与平面CEB夹角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4339a40ae9d1947ec3a4b3e2fa3a16cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af260e0d98c95d1e092dc4c6d348e3ea.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/1df57220-7cde-4435-aae6-184db7992037.png?resizew=160)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9afac7c616bbb14e1ed428a3c507c7dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
(2)若AC与平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9afac7c616bbb14e1ed428a3c507c7dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
您最近一年使用:0次
2023-01-12更新
|
229次组卷
|
2卷引用:重庆市北碚区2022-2023高二上学期期末数学试题
名校
5 . 如图,已知三棱柱
中,侧棱与底面垂直,且
,
分别是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/044137f3-67f1-4350-928d-693b862a75f5.png?resizew=159)
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
平面
;
(2)求平面
与平面
夹角的余弦值;
(3)点
在线段
上,若直线
与平面
所成角的余弦值为
时,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3275dc6ee54ee3f1606e7b491a6a27ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9d6e5b1970f8c445be8925e10105ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88a2eab2323b9e1a46d0f1c834eb7b97.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/044137f3-67f1-4350-928d-693b862a75f5.png?resizew=159)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f2af0a097c6c0870b0db6a9bec14e4f.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ce50ba5e349425274f05d46d120a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22064b7c5fdc0cd58905f49cc480b4e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40aa9bd446815b9b94a3b4623ba576b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e935bb9d7b7115429edbd1e7469af65.png)
您最近一年使用:0次
名校
解题方法
6 . 如图,已知平行六面体中,底面
是边长为1的菱形,
,
(1)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabe764f05300ac83c7d16b685d27af4.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5d7097c852a83e79453dd6fb244ac10.png)
您最近一年使用:0次
2023-01-11更新
|
432次组卷
|
6卷引用:重庆实验外国语学校2022-2023学年高二上学期期末数学试题
重庆实验外国语学校2022-2023学年高二上学期期末数学试题(已下线)第02讲 1.1.2空间向量的数量积运算(7类热点题型讲练)-【帮课堂】2023-2024学年高二数学同步学与练(人教A版2019选择性必修第一册)(已下线)高二上学期第一次月考十八大题型归纳(拔尖篇)(1)(已下线)专题01空间向量及其运算(4个知识点8种题型3个易错点)(2)(已下线)专题02 空间向量的数量积运算6种常见考法归类 - 【考点通关】2023-2024学年高二数学高频考点与解题策略(人教A版2019选择性必修第一册)(已下线)通关练01 空间向量的运算及应用11考点精练(3)
解题方法
7 . 如图,PA⊥平面ABCD,四边形ABCD是正方形,
,M、N分别是AB、PC的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/dad77e59-81fe-4e4f-a50a-657a754a86bf.png?resizew=207)
(1)求证:MN⊥平面PCD;
(2)求点C到平面MND的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b10835116b9b777a666b438c907b49.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/dad77e59-81fe-4e4f-a50a-657a754a86bf.png?resizew=207)
(1)求证:MN⊥平面PCD;
(2)求点C到平面MND的距离.
您最近一年使用:0次
8 . 如图,三棱柱
中,侧棱垂直于底面,
,
,
是棱
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/11/0734ef87-a541-4a23-b4cc-5787d18d1b0a.png?resizew=138)
(1)证明:
;
(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/f8df8666e352d1b453da7ef6c5331dc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/512cc5f78111d4592f6d843db6915f4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/11/0734ef87-a541-4a23-b4cc-5787d18d1b0a.png?resizew=138)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1078007ed9c2736d7406745a3230dc72.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf9628142422a4884bd59538da6d312.png)
您最近一年使用:0次
名校
解题方法
9 . 如图,
平面
,四边形
是正方形,
,
、
分别是
、
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/9/85ce0edb-a057-49c4-9d8e-3fb907e5d94a.png?resizew=190)
(1)求证:平面
平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/356db5143f0ca0e1f82fd47a61e22540.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/9/85ce0edb-a057-49c4-9d8e-3fb907e5d94a.png?resizew=190)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09cae065ec545de896871ff619390438.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/881129039cb98be128af55ffa1d3b7dc.png)
您最近一年使用:0次
2023-01-06更新
|
352次组卷
|
20卷引用:重庆市为明学校2022-2023学年高二上学期期末数学试题
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名校
解题方法
10 . 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)
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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