名校
解题方法
1 . 已知四边形
.现将
沿
边折起,使得平面
平面
.点
在线段
上,平面
将三棱锥
分成两部分,
.
![](https://img.xkw.com/dksih/QBM/2021/3/28/2687781169528832/2688187380457472/STEM/ad0b2f956f91432d863bb262c8ee2ec4.png?resizew=144)
![](https://img.xkw.com/dksih/QBM/2021/3/28/2687781169528832/2688187380457472/STEM/0d87cb60e8614e4e850949ac6957dccd.png?resizew=141)
(1)求证:
平面
;
(2)若
为
的中点,求
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94c5462211e1e576691c4879f22b9278.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcf6dc837ae85207789b94d109c5c2eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aae32645cbb4632b0fa04baffcdd40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeb5255e2159617505e0c87d01437a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c0b3d98afbddbdabe938924db4614c.png)
![](https://img.xkw.com/dksih/QBM/2021/3/28/2687781169528832/2688187380457472/STEM/ad0b2f956f91432d863bb262c8ee2ec4.png?resizew=144)
![](https://img.xkw.com/dksih/QBM/2021/3/28/2687781169528832/2688187380457472/STEM/0d87cb60e8614e4e850949ac6957dccd.png?resizew=141)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2b4e753ef119608188c46a50ec597e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeb5255e2159617505e0c87d01437a57.png)
您最近一年使用:0次
2021-03-29更新
|
1006次组卷
|
2卷引用:新疆乌鲁木齐市第四中学2022-2023学年高一下学期期末阶段性诊断测试数学试题
名校
解题方法
2 . 如图,在四棱锥
中,
底面
,
,
,
,
,点
为棱
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/b050fd98-3b74-4f76-a550-1ab1157b577e.png?resizew=181)
(1)证明:
;
(2)求三棱锥
的体积;
(3)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](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/9060f03b9ee41d70d135b1e1a8902ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68d31600cba2d5256c7e78b6122d6755.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ba814113887c21637c1954f244812f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/b050fd98-3b74-4f76-a550-1ab1157b577e.png?resizew=181)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c38bbe49284a2ceab26001ced8cfd56.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb7ed85b76fb4c5e9a9a60bff4337742.png)
(3)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fba0dd982b283611f4d01be499546af9.png)
您最近一年使用:0次
名校
解题方法
3 . 如图,四棱锥
中,
平面
,
,
,
,
分别为线段
,
的中点.
平面
;
(2)求证:
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95475bfc06e884754eb4a455c3f434e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fa6ea683971fa8b6299d7aab6d04092.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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/011abe509df00fe9410ab08b585ad7db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c0bfeadcf17b2a45896071f07a4a5a.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662698361c6b3ddaf0c28a3c87be53e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
您最近一年使用:0次
2021-03-28更新
|
170次组卷
|
14卷引用:新疆乌鲁木齐市第八中学2018-2019学年高一下学期期末考试数学试题
新疆乌鲁木齐市第八中学2018-2019学年高一下学期期末考试数学试题辽宁省沈阳市第二中学2019-2020学年度下学期高一年级数学期末考试试题2018年高考数学(文科)二轮复习 精练:大题-每日一题规范练四川省乐山四校2017-2018学年高二第三学期半期联考数学(文科)试题2018-2019学年人教版高中数学选修1-2 模块综合评价(一)黑龙江省海林市朝鲜族中学人教版高中数学选修1-2同步练习:模块终结测评(一)(已下线)实战演练7.2-2018年高考艺考步步高系列数学(已下线)1.6.2 垂直关系的性质(课时作业)-2018版步步高学案导学与随堂笔记数学(北师大版必修2)广西南宁市马山县金伦中学4+N高中联合体2019-2020学年高二上学期期中考试数学试题安徽省铜陵市第一中学2019-2020学年高二上学期期中数学试题(已下线)专题23 空间点线面的位置关系-十年(2011-2020)高考真题数学分项宁夏青铜峡市高级中学2021-2022学年高二上学期第一次月考数学(理)试题山西省运城市稷山中学2023届高三上学期月考(重组五)数学试题(已下线)专题23 立体几何解答题(文科)-1
名校
4 . 如图,
平面
,
,
,
,
,点
为
的中点.
![](https://img.xkw.com/dksih/QBM/2021/2/2/2649249730281472/2650080652337152/STEM/89b85ebc3eee45be802e066b58edfaa5.png?resizew=151)
(1)求证:
平面
;
(2)若二面角
大小为
,求直线
与平面
所成的角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a38e6c6dfde2b19b6b47f35a439a06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb2dd10731b99c0f4f89ee957f8a239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bd8a97f37156cec6592795da3941f87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd3c9fe58d6f626981c4f16431a5181b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://img.xkw.com/dksih/QBM/2021/2/2/2649249730281472/2650080652337152/STEM/89b85ebc3eee45be802e066b58edfaa5.png?resizew=151)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a5edfe97aeab0cf16b40fa9d2e15f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e95ea5c2c1a7952b03b2b215b9f8c4e7.png)
(2)若二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73beb6bb6237b851378c181faf1913c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aaca2ed137b3cd47cf35fd986320bea.png)
您最近一年使用:0次
2021-02-03更新
|
353次组卷
|
3卷引用:新疆昌吉回族自治州奇台县第一中学2022-2023学年高二上学期期末考试数学试题
新疆昌吉回族自治州奇台县第一中学2022-2023学年高二上学期期末考试数学试题江西省景德镇市2021届高三上学期期末数学(理)试题(已下线)专题29 空间向量与立体几何(解答题)-2021年高考数学二轮复习热点题型精选精练(新高考地区专用)
5 . 如图,直四棱柱
的底面
为平行四边形,
是
的中点.
![](https://img.xkw.com/dksih/QBM/2021/2/1/2648793695313920/2649642349068288/STEM/e60a3bd8-e878-494c-8fa7-4608c55d72b4.png)
(Ⅰ)求证:平面
平面
;
(Ⅱ)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30158361a72751ceed2b9a37f75370f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/2021/2/1/2648793695313920/2649642349068288/STEM/e60a3bd8-e878-494c-8fa7-4608c55d72b4.png)
(Ⅰ)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a89b54b2798d0b900d1169eb831587a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a02de156f12f2623da67dda5ceaeb3f.png)
(Ⅱ)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
您最近一年使用:0次
2021-02-02更新
|
435次组卷
|
3卷引用:新疆昌吉州行知学校2023届高三上学期期末考试数学(文)试题
名校
6 . 如图,AB是
的直径,PA垂直于
所在的平面,C是圆周上不同于A,B的一动点.
面PAC;
(2)若PA=AC=1,AB=2,求直线PB与平面PAC所成角的正切值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1633988fd62a652de726ee92a917b52d.png)
(2)若PA=AC=1,AB=2,求直线PB与平面PAC所成角的正切值.
您最近一年使用:0次
2021-01-29更新
|
3994次组卷
|
10卷引用:新疆乌鲁木齐市第三十六中学2022-2023学年高一下学期期末考试数学试题
新疆乌鲁木齐市第三十六中学2022-2023学年高一下学期期末考试数学试题新疆阿克苏地区新和县实验中学2021-2022学年高二上学期期末数学试题宁夏六盘山市高级中学2020-2021学年高一上学期期末考试数学试题吉林省长春市第二十中学2020-2021学年高一下学期期末数学试题内蒙古呼伦贝尔市满洲里市第一中学2022-2023学年高一下学期期末考试数学试题专题05 空间直线、平面的垂直-《期末真题分类汇编》(新高考专用)(已下线)8.6 第八章 《立体几何初步》 综合测试卷--2020--2021高中数学新教材配套提升训练(人教A版必修第二册)(已下线)8.6空间直线、平面的垂直(2)(精炼)-2020-2021学年高一数学一隅三反系列(人教A版2019必修第二册)广东省东莞市新世纪英才学校2020-2021学年高一下学期第二次段考数学试题4.3.2 直线与平面垂直的性质
7 . 如图,矩形ABCD中,
,
,E、F分别为CD、AB边上的点,且
,
,将
沿BE折起至
位置(如图所示),连结AP、EF、PF,其中
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/a2b58300-a388-49c1-904a-e6c75eef6e67.png?resizew=332)
(1)求证:
平面ABED.
(2)求直线AP与平面PEF所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b65065ec3a0cb4b050989165c003d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267ace52b64e1e7dfc5211e033255b7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6370d6c626bdabf1fc694501ee6c714f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d64e0206b1814c35cc96bd2b6b12239a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfa1a2af7e38d33634c462300df381f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b6accdd9b317c922d335e44911df357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ddf4d708c829ece5bef03f0d9517df8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/a2b58300-a388-49c1-904a-e6c75eef6e67.png?resizew=332)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce49710609f7bffc36441dc5c2f7c2ea.png)
(2)求直线AP与平面PEF所成角的正弦值.
您最近一年使用:0次
8 . 如图,在三棱柱
中,
与
都为正三角形且
面
,
、
分别是
、
的中点.
![](https://img.xkw.com/dksih/QBM/2021/1/3/2628338649300992/2633913390252032/STEM/c3ae2601748644f5a98a3c061e651e2a.png?resizew=208)
求证:(1)平面
平面
;
(2)平面
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://img.xkw.com/dksih/QBM/2021/1/3/2628338649300992/2633913390252032/STEM/c3ae2601748644f5a98a3c061e651e2a.png?resizew=208)
求证:(1)平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f95f248c3c13e939e752c70fc6b397f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/161a4660d3a35f0de6af3d9068cf7bea.png)
(2)平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/497fcba48527feaff406cbddea38ceb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9a8181f7a7fe7f3fac872ce9534f15.png)
您最近一年使用:0次
2021-01-11更新
|
325次组卷
|
4卷引用:新疆伊宁市第四中学2020-2021学年高一上学期期末考试数学试题
名校
解题方法
9 . 如图,在四棱锥
中,四边形ABCD为直角梯形,
,
,
底面ABCD,且
,
,M为PD的中点.
![](https://img.xkw.com/dksih/QBM/2021/1/7/2631114962952192/2633140889739264/STEM/1d437642b9b746cb9abc7dd98985a672.png?resizew=229)
(1)求证:
平面PAB;
(2)求证:
平面PAC;
(3)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0d7095ddd69d6ceaf1065b1bc2c79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b10835116b9b777a666b438c907b49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829018a6ca0aff95d89e3f7cd943274e.png)
![](https://img.xkw.com/dksih/QBM/2021/1/7/2631114962952192/2633140889739264/STEM/1d437642b9b746cb9abc7dd98985a672.png?resizew=229)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5865d488a9cf1181016fd2e866177cdd.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f30533da2e1d2a958dc906c37eba9d.png)
(3)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae1de3f5eb55a078a2dc8d2a585b86a.png)
您最近一年使用:0次
2021-01-10更新
|
356次组卷
|
4卷引用:新疆乌鲁木齐市第四中学2020-2021学年高一下学期期末数学试题
2020·全国·模拟预测
10 . 如图,在直四棱柱
中,底面
是平行四边形,点
,
,
分别是
,
,
的中点,
,
,
,直线
与底面
所成的角为
.
![](https://img.xkw.com/dksih/QBM/2021/1/5/2629676246302720/2630159375998976/STEM/6c844c4fd3724f429ae8e6b4f4e03b0c.png?resizew=192)
(1)证明:
平面
;
(2)求二面角
的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.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/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7dbf31dfd36aa456a63bafea8bc1985.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://img.xkw.com/dksih/QBM/2021/1/5/2629676246302720/2630159375998976/STEM/6c844c4fd3724f429ae8e6b4f4e03b0c.png?resizew=192)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9abe6e8d1f4f1e8bdc46ddbae0cd789.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da9719106739f03e86b521771a260803.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c628ff00b36c2c9db4ed5ff8c4cc9e80.png)
您最近一年使用:0次