名校
解题方法
1 . 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
|
168次组卷
|
14卷引用: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
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)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
2 . 在长方体
中,底面
是边长为
的正方形,
是
的中点,
是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/8cbdf837-994e-4d46-b7e8-033ce06440f2.png?resizew=141)
(1)求证:
平面
;
(2)若
,求平面
与平面
所成二面角的正弦值.
![](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/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/8cbdf837-994e-4d46-b7e8-033ce06440f2.png?resizew=141)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f9d682e5d3cc8573574d8d11636758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a40d8806b86572352ed08aa2b7f89f7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f7e8dd831f4edc711c0f7d5f078f625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a40d8806b86572352ed08aa2b7f89f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589c878e789e07e33d65c8a18cf2c58a.png)
您最近一年使用:0次
名校
解题方法
3 . 如图所示,四棱锥
中,
,
,
,
,
,
,E为CD的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/2/8a985622-e57d-4d14-a6f0-c1384845d67d.png?resizew=185)
(1)求证:
;
(2)求三棱锥
与四棱锥
的体积比.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57009eca005a9dbd681439b4d48ebaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b40d0d2f3cdd8981bb792ad87efb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7aeb2a8d1437eeb4482c3b6ad9f315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d4746df85049d1651d3f6c30212a7a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa18c2a78c400c80a5760743f31771c0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/2/8a985622-e57d-4d14-a6f0-c1384845d67d.png?resizew=185)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ec00ff2ccbb5cb357701e85e6c1cf2d.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/042923d5220d5d1a22f20ce2d9edc43e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12df7c77005d7c4eebe5a7dcb2aa9f17.png)
您最近一年使用:0次
解题方法
4 . 在长方体ABCD﹣A1B1C1D1中,底面ABCD是边长为2的正方形,E是AB的中点,F是BC的中点
(1)求证:EF∥平面A1DC1;
(2)若长方体ABCD﹣A1B1C1D1中,夹在平面A1DC1与平面B1EF之间的几何体的体积为
,求点D到平面B1EF的距离.
(1)求证:EF∥平面A1DC1;
(2)若长方体ABCD﹣A1B1C1D1中,夹在平面A1DC1与平面B1EF之间的几何体的体积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d8c501994be4ef94a276b689802a5f9.png)
![](https://img.xkw.com/dksih/QBM/2020/2/2/2390315033804800/2421647972073472/STEM/4fb6a898-dc97-4995-8b1d-f0b2323b8904.png?resizew=235)
您最近一年使用:0次
解题方法
5 . 如图,在长方体
中,
,
为
的中点,
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/cab0350e-4643-4966-9b62-1873635d5112.png?resizew=146)
(1)求证:
平面
;
(2)求平面
与平面
所成二面角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cff17a9aa7466b66b0c678f294dca021.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/cab0350e-4643-4966-9b62-1873635d5112.png?resizew=146)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fae7f4612c548b1f72a964ddb291cd2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db3ef97d64e58d311019b70fe5e2cc0d.png)
您最近一年使用:0次
6 . 如图,直三棱柱ABC-A1B1C1中,D,E分别是AB,BB1的中点,AA1=AC=CB=
AB.
![](https://img.xkw.com/dksih/QBM/2021/11/6/2845467340947456/2849234123825152/STEM/cee65f7f-a2fd-4504-a3ad-037ae8ecde7a.png)
(1)证明:BC1∥平面A1CD;
(2)求异面直线BC1和A1D所成角的大小;
(3)当AB=2
时,求三棱锥C-A1DE的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://img.xkw.com/dksih/QBM/2021/11/6/2845467340947456/2849234123825152/STEM/cee65f7f-a2fd-4504-a3ad-037ae8ecde7a.png)
(1)证明:BC1∥平面A1CD;
(2)求异面直线BC1和A1D所成角的大小;
(3)当AB=2
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
您最近一年使用:0次
2021-11-11更新
|
784次组卷
|
5卷引用:2016届河北省衡水中学高三上学期四调文科数学试卷
解题方法
7 . 如图,在三棱柱
中,侧棱
平面
,
、
分别是
、
的中点,点
在侧棱
上,且
,
,求证:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/c1b84445-72f6-44b1-b45d-8da83be18f1e.png?resizew=151)
(1)直线
平面
;
(2)平面
平面
.
![](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/99b16cff607cdc2d69afc70dc778acbb.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53b595f8a0517b63585b065ea65fffbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab93035abd5877f2e52041358b817a08.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/c1b84445-72f6-44b1-b45d-8da83be18f1e.png?resizew=151)
(1)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b78172568aac9805d2ea2d5f742bf80c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ee076fe7dbca5616c4e8a6869a355f4.png)
(2)平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2147971abecf15404665d75f577ebfff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ee076fe7dbca5616c4e8a6869a355f4.png)
您最近一年使用:0次
2020-02-19更新
|
441次组卷
|
2卷引用:广西桂林市2019-2020学年高一上学期期末数学试题
8 . 如图,在四棱锥
中,四边形
是边长为2的正方形,
,
为
的中点,点
在
上,
平面
,
在
的延长线上,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/5c48752f-2753-45c8-a8e7-51c1dc1c734e.png?resizew=171)
(1)证明:
平面
.
(2)过点
作
的平行线,与直线
相交于点
,点
为
的中点,求
到平面
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/03d778fedbef026758a89b0372c7ba4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a5f445af1ae136773cb338920552ff2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71cbbefd946d30f0346261430eae60a0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/5c48752f-2753-45c8-a8e7-51c1dc1c734e.png?resizew=171)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a03203dd5ac79dd8c6707e4340773359.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/262b958cb704607cd5c0a92253de258e.png)
您最近一年使用:0次
2020-02-18更新
|
316次组卷
|
3卷引用:广西河池市2019-2020学年高一上学期期末数学试题
解题方法
9 . 如图,在四棱锥
中,
,
分别为
的中点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/da9b6ba4-071b-4572-a977-0deef266879f.png?resizew=135)
(1)求证:
平面
;
(2)求直线
与底面
所成角的大小
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8662205622d3b0c8dbfc543c64188f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c03e90ca7144c0ffbb6a6cc4a106784c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/382b1cf964713bd58885269081903dc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a29f52897bd8e15c93884d843555bd7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cca433260b7cf14e30258592ce007fe2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/da9b6ba4-071b-4572-a977-0deef266879f.png?resizew=135)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebc26eda15abd72b7efe68af47639a5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e4fa04825ac7d071968056322d88be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ce735bef8c7fc6a1ddcebd449e38f7e.png)
您最近一年使用:0次
2020-02-18更新
|
422次组卷
|
2卷引用:2020届广西河池市高三上学期期末考试数学(理)试题
名校
解题方法
10 . 如图,在四棱锥
中,
,
,
,
,
分别为
的中点,
.
![](https://img.xkw.com/dksih/QBM/2020/2/16/2400372945534976/2401239919378432/STEM/14241bbd-e1d3-4009-b15b-93779d3d342a.png)
(1)求证:
平面
;
(2)求四棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8662205622d3b0c8dbfc543c64188f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d65595a75b4d7f448c0424aa2169be18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377b5f7197e5bd1afeea4d931307956a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95a078495ba47076ccaa28b46f765d80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cae57e90e373d68c5550a7e258bfbe22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a29f52897bd8e15c93884d843555bd7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cca433260b7cf14e30258592ce007fe2.png)
![](https://img.xkw.com/dksih/QBM/2020/2/16/2400372945534976/2401239919378432/STEM/14241bbd-e1d3-4009-b15b-93779d3d342a.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebc26eda15abd72b7efe68af47639a5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
(2)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8662205622d3b0c8dbfc543c64188f0.png)
您最近一年使用:0次
2020-02-17更新
|
1052次组卷
|
4卷引用:2020届广西河池市高三上学期期末考试数学(文)试题