1 . 如图,多面体
中,
是菱形,
,
平面
,
,且
.
![](https://img.xkw.com/dksih/QBM/2022/10/25/3095557210415104/3100309961850880/STEM/eeeaab36bd044f6eafe1b031a31bfe9c.png?resizew=186)
(1)求证:平面
平面
;
(2)求多面体
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147e7c8ba0bbb540a712f6eb2ed6d22e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b834d2394d1779d267e305df5f5d43d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d552b00c85d1e11ef3ac6b6e06221fa.png)
![](https://img.xkw.com/dksih/QBM/2022/10/25/3095557210415104/3100309961850880/STEM/eeeaab36bd044f6eafe1b031a31bfe9c.png?resizew=186)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3547a914468b082d8d8741b974a03190.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6439082496df7567acd5a31a3448db71.png)
(2)求多面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
您最近一年使用:0次
2022-11-01更新
|
1393次组卷
|
4卷引用:广西南宁市第三十六中学2023届高三上学期数学(文)第三次检测试题
广西南宁市第三十六中学2023届高三上学期数学(文)第三次检测试题广西普通高中2023届高三上学期摸底考试数学(文)试题(已下线)模块十一 立体几何-1(已下线)第31讲 空间几何体体积及点到面的距离问题4种题型
2 . 如图所示,在四棱锥
中,平面
平面
,
,
是等边三角形,已知
,
,M是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/895864e8-4f66-4fb1-b889-1b606119873c.png?resizew=192)
(1)证明:平面
平面
;
(2)求四棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.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/ee8ef58be8708144272538ee427fb92c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a675310c8ba418e5a59beb7317e21e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58579094b5d753e9205c2ec89ca3ae07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5e8d9bd81b063a824baf17d947db5ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/895864e8-4f66-4fb1-b889-1b606119873c.png?resizew=192)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6fb16d2f0db758b8b7a8d3743143f48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4117625867a74cd022584500c76deca.png)
您最近一年使用:0次
3 . 如图所示,在空间几何体ABCDE中,△ABC与△ECD均为等边三角形,
,
,且平面ABC和平面CDE均与平面BCD垂直.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/24/2081d74a-7e43-4d68-9043-04ae9016e34b.png?resizew=143)
(1)求证:平面ABC
平面ECD;
(2)求空间几何体ABCDE的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e98937d07d10a81acd67acebb25633.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ad76a622b81e3eaf345f8100dd1885.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/24/2081d74a-7e43-4d68-9043-04ae9016e34b.png?resizew=143)
(1)求证:平面ABC
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8acbf7aa8e684b3bb898396d8de8a58e.png)
(2)求空间几何体ABCDE的体积.
您最近一年使用:0次
解题方法
4 . 故宫太和殿是中国形制最高的宫殿,其建筑采用了重檐庑殿顶的屋顶样式,庑殿顶是“四出水”的五脊四坡式,由一条正脊和四条垂脊组成,因此又称五脊殿.由于屋顶有四面斜坡,故又称四阿顶.如图,某几何体
有五个面,其形状与四阿顶相类似.已知底面
为矩形,
,
底面
,且
,
,
分别为
,
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/eaa638a1-f6de-4f2a-9112-319c60acf133.png?resizew=239)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/aa5c318f-8f38-462b-bbe8-ff7a58f30ca0.png?resizew=212)
(1)证明:
,且
平面
.
(2)若
与底面
所成的角为
,过点
作
,垂足为
,过
作平面
的垂线,写出作法,并求
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74366b8e78790299c19fa78eb43b1e57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a407b262c22419f73396170ecdc849.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdd384e94139c3f2d93ce8f38e26db95.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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/eaa638a1-f6de-4f2a-9112-319c60acf133.png?resizew=239)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/aa5c318f-8f38-462b-bbe8-ff7a58f30ca0.png?resizew=212)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c197d8b99f2eb7477947e53461b5d548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ffc6952e988d04f22f0fb2f7f0ab7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f4248e8021130ab60365e3d2e9a694.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b46c607b3deac746c0ef3389ad8f65c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ab98fce4c908b9e86193825bf85fc03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369eb8ad56da7dc1cdb7c43762be4bee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369eb8ad56da7dc1cdb7c43762be4bee.png)
您最近一年使用:0次
2022-11-26更新
|
228次组卷
|
2卷引用:广西贵港市百校2023届高三上学期11月联考数学(文)试题
5 . 如图在四棱锥
中,四边形
为平行四边形,
,
为
的中点,且
,
底面
,
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/5cf44b2e-14df-43ca-a01c-a55961857ac3.png?resizew=221)
(1)证明:平面
平面
;
(2)求四棱锥
的体积.
![](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/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48e69a19dd11c933e9e42bf6f8b8550f.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/5cf44b2e-14df-43ca-a01c-a55961857ac3.png?resizew=221)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6edfd337101a5c034ccbab0380727154.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(2)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
您最近一年使用:0次
名校
解题方法
6 . 如图,在四棱柱ABCD﹣A1B1C1D1中,点M是线段B1D1上的一个动点,E,F分别是BC,CM的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/3/f6935d06-8e75-4720-9b2d-b32cc2494b46.png?resizew=160)
(1)求证:EF
平面BDD1B1;
(2)设G为棱CD上的中点,求证:平面GEF
平面BDD1B1.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/3/f6935d06-8e75-4720-9b2d-b32cc2494b46.png?resizew=160)
(1)求证:EF
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
(2)设G为棱CD上的中点,求证:平面GEF
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
您最近一年使用:0次
2022-11-02更新
|
1398次组卷
|
13卷引用:广西百色民族高级中学2021-2022学年高一下学期期末数学模拟题3
广西百色民族高级中学2021-2022学年高一下学期期末数学模拟题3福建省安溪一中、养正中学、惠安一中、泉州实验中学2021-2022学年高一下学期期中数学试题(已下线)第08练 点线面的位置关系-2022年【暑假分层作业】高一数学(苏教版2019必修第二册)四川省眉山市仁寿第一中学南校区2022-2023学年高二上学期期中考试数学(理)试题四川省眉山市仁寿第一中学南校区2022-2023学年高二上学期期中考试数学(文)试题(已下线)8.5 空间直线、平面的平行(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)8.5.3 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)专题训练:线线、线面、面面平行证明(已下线)8.5.3 平面与平面平行(2)-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)专题8.15 空间中线面的位置关系大题专项训练(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)专题强化一 线面、面面的平行和垂直位置关系-《考点·题型·技巧》(已下线)10.4 平面与平面间的位置关系(第1课时)(七大题型)(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)吉林省延边朝鲜族自治州延吉市延边第二中学2022-2023学年高一下学期期中数学试题
名校
解题方法
7 . 如图,四棱柱
中,底面ABCD是菱形,
,
平面ABCD,E为
中点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/9/febec444-e341-426e-bade-a0dc5bd777f2.png?resizew=181)
(1)求证:
平面
;
(2)求三棱锥
的体积;
(3)在
上是否存在点M,满足
平面
?若存在,求出AM的长;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4339a40ae9d1947ec3a4b3e2fa3a16cd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/9/febec444-e341-426e-bade-a0dc5bd777f2.png?resizew=181)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89006cac018a9875f65ed7bd429c61bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e48e2f18c4c61dfcc908827ac3c8a204.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c23ea8141b89b3c737ce64d3be380f.png)
(3)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d1d2e0f281222a5f289ea4008370aed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3414bf337e4831721c7d894f6e125369.png)
您最近一年使用:0次
2022-04-30更新
|
850次组卷
|
5卷引用:广西南宁市宾阳中学2021-2022学年高一下学期期末考试数学试题
广西南宁市宾阳中学2021-2022学年高一下学期期末考试数学试题广东省清远市重点中学2021-2022学年高一下学期期中数学试题云南省昆明市嵩明县2021-2022学年高一下学期期中考试数学试题(已下线)专题08 立体几何中的平行与垂直问题-2021-2022学年高一数学下学期期末必考题型归纳及过关测试(人教A版2019)广西柳州市第三中学2023-2024学年高二上学期开学数学试题
解题方法
8 . 如图,在四棱锥
中,底面ABCD是矩形,
平面ABCD,且
,
,
,E为PD的中点.
![](https://img.xkw.com/dksih/QBM/2022/4/20/2962149527773184/2963215974440960/STEM/e11a6d39-5e09-4939-a563-5bda4f626e10.png?resizew=178)
(1)求证:
平面ACE;
(2)求四棱锥
的侧面积.
![](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/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00bab2c27eac56fffa4cd7dbe1dcdf1a.png)
![](https://img.xkw.com/dksih/QBM/2022/4/20/2962149527773184/2963215974440960/STEM/e11a6d39-5e09-4939-a563-5bda4f626e10.png?resizew=178)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acf2bc3dd1f1ae5d5e28b0366f454ec1.png)
(2)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
您最近一年使用:0次
2022-04-21更新
|
1028次组卷
|
3卷引用:广西南宁市2022届高三高中毕业班第二次适应性测试数学(文)试题
名校
解题方法
9 . 如图,四棱锥
的底面
为矩形,
底面
,
,点
是棱
的中点.
![](https://img.xkw.com/dksih/QBM/2022/4/16/2959554343337984/2962809462726656/STEM/a6cc28c94f5f4f9083c776a3a016ed64.png?resizew=154)
(1)求证:
;
(2)若
,
,求三棱锥
的体积.
(参考公式:锥体体积公式
,其中
为低面面积,
为高.)
![](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/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829f9180ddd9aa1a0ee0dc520f4e0b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://img.xkw.com/dksih/QBM/2022/4/16/2959554343337984/2962809462726656/STEM/a6cc28c94f5f4f9083c776a3a016ed64.png?resizew=154)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf900817bd582fe8c5770158458208a1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f656e1d1f68954e5f06de8958f6a9310.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d492a2248463e0c0199a25d0f76d23.png)
(参考公式:锥体体积公式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f7309683ff41a94e5c5cfeabaeda52a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
您最近一年使用:0次
2022-04-21更新
|
1146次组卷
|
3卷引用:广西贺州第五高级中学2021-2022学年高二下学期第一次月考数学(理)试题
解题方法
10 . 如图,多面体
中,已知面
是边长为3的正方形,
,平面
⊥平面
,△
中
边上的高![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e4c741b08cd19902119d2006126347a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/21/0b0ab36a-2046-4440-ab89-677f21628a70.png?resizew=192)
(1)求证:
;
(2)求该多面体的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/058f36d315245b63a811d5c6f348c17b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e51817ee1ebf17c73ed21171bcfc5b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e51817ee1ebf17c73ed21171bcfc5b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e4c741b08cd19902119d2006126347a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/21/0b0ab36a-2046-4440-ab89-677f21628a70.png?resizew=192)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/451557ef624a9c142ebc5fa155e0e28b.png)
(2)求该多面体的体积.
您最近一年使用:0次