1 . 如图,在四棱锥
中,
,平面
平面ABCD,E,F分别为棱PD,AD的中点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/9/de243d16-7031-4f01-9365-a938b3d0638a.png?resizew=201)
(1)求证:平面
平面PAD;
(2)若
,求几何体PABCEF的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4974cba20f146356243bc88daffae0c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3e2bed5ce5fe466395d2f5743d335b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dba2dc42ceabc4321c6a181936e49f69.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/9/de243d16-7031-4f01-9365-a938b3d0638a.png?resizew=201)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3599e2d14048d66477e736223dd591d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
您最近一年使用:0次
2 . 在如图所示的几何体中,四边形ABCD为菱形,
,
,
,
,
,点F在平面ABCD内的射影恰为BC的中点G.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/3/ba831ba5-1826-4024-8a16-eceb84a4b1b6.png?resizew=234)
(1)求证:平面
平面BED;
(2)求该几何体的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ec435aa1401dbce7863b531bf2f3e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/117878cbd8c00f2aabcdf62b487e2dc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeedb5f361a1baff6338436fff6c471d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60572975f9ac06ffc8d98ef94de49eb0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/3/ba831ba5-1826-4024-8a16-eceb84a4b1b6.png?resizew=234)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc6db50a9709c3f4d84eee7bdf1250.png)
(2)求该几何体的体积.
您最近一年使用:0次
2023-04-02更新
|
755次组卷
|
3卷引用:河南省安阳市2023届高三第二次模拟考试文科数学试题
河南省安阳市2023届高三第二次模拟考试文科数学试题第13章 立体几何初步(A卷·基础提升练)-【单元测试】2022-2023学年高一数学分层训练AB卷(苏教版2019必修第二册)(已下线)期末复习07 空间几何线面、面面垂直-期末专项复习
解题方法
3 . 图,已知多面体
中,
平面
,
平面
,且
,
,
,
四点共面,
是边长为2的菱形,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/1/b13e4696-11e0-43bc-9c09-3c1cfa0f5656.png?resizew=201)
(1)求证:
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/e7a38e6c6dfde2b19b6b47f35a439a06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f9d682e5d3cc8573574d8d11636758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6906f59d09ce31956d6f5ea2b23fc77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/334fec9ec91596bf9d2b41568123715f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/1/b13e4696-11e0-43bc-9c09-3c1cfa0f5656.png?resizew=201)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a5f445af1ae136773cb338920552ff2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4734735213b599a9915e1ed91a5d8ce4.png)
(2)求多面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
您最近一年使用:0次
4 . 如图,已知三棱柱
中,
底面
,
,
,
,
,
,
分别为棱
,
的中点.
![](https://img.xkw.com/dksih/QBM/2021/3/16/2679227567153152/2683148427862016/STEM/259630f7e3834464bd162550580cb748.png?resizew=239)
(1)求异面直线
与
所成角的大小;
(2)若
为线段
的中点,试在图中作出过
,
,
三点的平面截该棱柱所得的多边形,并求该截面分三棱柱成两部分(较小部分与较大部分)的体积的比值.
![](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/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad1a56baf43ffdf67bc8460856e31fec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b40d0d2f3cdd8981bb792ad87efb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.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/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/2021/3/16/2679227567153152/2683148427862016/STEM/259630f7e3834464bd162550580cb748.png?resizew=239)
(1)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.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/895dc3dc3a6606ff487a4c4863e18509.png)
您最近一年使用:0次
2021-03-22更新
|
856次组卷
|
2卷引用:河南省豫南省级示范高中联盟2022届高三下学期考前模拟二文科数学试题
解题方法
5 . 在如图所示的空间几何体中,平面
平面
,
与
均是等边三角形,
,
和平面
所成的角为
,且点
在平面
上的射影落在
的平分线上.
![](https://img.xkw.com/dksih/QBM/2021/3/11/2675851844009984/2677584885653504/STEM/c922b59d-9d74-4e80-ab15-818a1f29c97e.png)
(1)求证:
平面
;
(2)求多面体
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17580410bf63dba4fe164265afaac4cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90b40c2b0ab8e1cfe5112d428b4b829f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f941c5fba24bdeea8da41495323103e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://img.xkw.com/dksih/QBM/2021/3/11/2675851844009984/2677584885653504/STEM/c922b59d-9d74-4e80-ab15-818a1f29c97e.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8d2d217e9bcd059908f117dfc4d4259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d78fc7fcb2762de28dcef8aa3aa0e49.png)
(2)求多面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64515eca2696cc35da2b5c698768ec31.png)
您最近一年使用:0次
2021-03-14更新
|
1232次组卷
|
5卷引用:河南省2021届普通高中毕业班高考适应性测试数学(文)试题
河南省2021届普通高中毕业班高考适应性测试数学(文)试题(已下线)精做04 立体几何-备战2021年高考数学(文)大题精做(已下线)解密13 空间几何体(分层训练)-【高频考点解密】2021年高考数学(文)二轮复习讲义+分层训练(已下线)专题01 立体几何求体积-【解题思路培养】2022年高考数学一轮复习解答题拿分秘籍(全国通用版)广西壮族自治区名校2024届高三上学期11月联考数学(文)试题
解题方法
6 . 如图,直棱柱
的底面是菱形,
分别为棱
,
的中点,
.
![](https://img.xkw.com/dksih/QBM/2020/11/27/2601825945821184/2609288160927744/STEM/fe9e67d9b17d4507a2c3974c1101e50c.png?resizew=227)
(1)求证:
;
(2)若
,求几何体
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a0b29cc24e75be59cbaa5c60a4b4c6e.png)
![](https://img.xkw.com/dksih/QBM/2020/11/27/2601825945821184/2609288160927744/STEM/fe9e67d9b17d4507a2c3974c1101e50c.png?resizew=227)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6155f82a6f64b20085976cea9b64193.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75a4ffebfed74d8f8ffa8f4b4757093a.png)
您最近一年使用:0次
2020-12-07更新
|
491次组卷
|
2卷引用:河南省开封市2021届高三第一次模拟考试文科数学试题
名校
解题方法
7 . 如图,在直三棱柱
中,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/30/a730d174-fa61-42ec-afd1-7e2aa23b53bd.png?resizew=164)
(1)试在线段
上找一个异于
,
的点
,使得
,并证明你的结论;
(2)在(1)的条件下,求多面体
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df09d04a0c1a9c47aa547811469a6e0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e1f4f255d191786f7d330d278868c2d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/30/a730d174-fa61-42ec-afd1-7e2aa23b53bd.png?resizew=164)
(1)试在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c34b7435f674beb041681fd5615a5b88.png)
(2)在(1)的条件下,求多面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f090632723d1b2391519095c2d59c8d8.png)
您最近一年使用:0次
名校
解题方法
8 . 在如图所示的几何体中,
,
平面
,
,
,
,
.
(1)证明:
平面
;
(2)过点
作一平行于平面
的截面,画出该截面,说明理由,并求夹在该截面与平面
之间的几何体的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/723ba035704db9633cd6bb2bd51baf5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56fdf217165748fafe938b64fa08179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74d415fc177602419318970258793c8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e2a44d05b1d387150c4b359e021ffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ec435aa1401dbce7863b531bf2f3e5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/18/375762fb-1cff-4361-8daa-9a05e07e3da6.png?resizew=163)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b9d54cbbf601f4583659771eb534997.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
您最近一年使用:0次
2018-04-29更新
|
809次组卷
|
6卷引用:【全国市级联考】河南省新乡市2018届高三第三次模拟测试数学(文)试题
9 . 如图所示的几何体QPABCD为一简单组合体,在底面ABCD中,∠DAB=60°,AD⊥DC,AB⊥BC,QD⊥平面ABCD,PA∥QD,PA=1,AD=AB=QD=2.
![](https://img.xkw.com/dksih/QBM/2018/2/6/1876366785724416/1877037849550848/STEM/1236765d7bef4b409372812d4aef9921.png?resizew=112)
(1)求证:平面PAB⊥平面QBC;
(2)求该组合体QPABCD的体积.
![](https://img.xkw.com/dksih/QBM/2018/2/6/1876366785724416/1877037849550848/STEM/1236765d7bef4b409372812d4aef9921.png?resizew=112)
(1)求证:平面PAB⊥平面QBC;
(2)求该组合体QPABCD的体积.
您最近一年使用:0次
2018-02-07更新
|
712次组卷
|
11卷引用:2020届河南省濮阳市高三摸底考试数学(文)试题
2020届河南省濮阳市高三摸底考试数学(文)试题2016届福建省厦门市高三5月月考文科数学试卷2017届重庆市巴蜀中学高三上月考一数学(文)试卷2017届湖南湘中名校教改联合体高三文12月联考数学试卷湖南省长沙市长郡中学2017-2018学年高二12月月考(第二次模块检测)数学(文)试题广东省中山市2018届高三上学期期末考试数学(文)试题(已下线)二轮复习 【理】专题12 空间的平行与垂直 押题专练人教A版高中数学 高三二轮(理)专题12 点、直线、平面之间的位置关系 测试2020届全国100所名校高考模拟金典卷高三文科数学(十)试题浙江省台州市金清高中2019-2020学年高二上学期期中数学试题陕西省西安市西安第二十五中学2019-2020学年高三上学期11月大练习文科数学试题
名校
10 . 已知四棱锥
中,
平面
,
,
,
,
,点
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/14/d578dec2-eec7-450b-bf3b-88ba547c82b8.png?resizew=150)
(1)求证:平面
平面
;
(2)若直线
与平面
所成角的正切值为
,试求三棱锥
的外接球的体积与多面体
的体积比.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45fbffb9e2c7fa7c5006cde8da0cabe.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/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27db558e8db4c957654c8e5cecd2d2dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.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/2022/9/14/d578dec2-eec7-450b-bf3b-88ba547c82b8.png?resizew=150)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f04c222223dae9ef27d4c132534d9848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/218054144a13435580cd132b9459546c.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea7d5f4529fc41382cd42b8455a4dfb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ef1f4ea687107a813ce18891a5910fc.png)
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