名校
解题方法
1 . 如图,四棱锥
中,侧面
是边长为
的正三角形,且与底面垂直,底面
是
的菱形,
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/cc426f55-5d4e-429f-b17c-54201cc1b801.png?resizew=237)
(1)求证:
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc46688d8723cf2003fc25890265200.png)
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/cc426f55-5d4e-429f-b17c-54201cc1b801.png?resizew=237)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/373f735f0f04d11f1951eaef1bb78b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc46688d8723cf2003fc25890265200.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8db2bec6ebe672e8f83f24e9bdf4654.png)
您最近一年使用:0次
解题方法
2 . 如图,
是边长为2的等边三角形,
且
,
,平面
平面
,
是
的中点.
![](https://img.xkw.com/dksih/QBM/2022/5/7/2974417907589120/2975171814629376/STEM/d0d68c93-7922-4a7e-8cf3-a229901059ba.png?resizew=174)
(1)求证:
平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b41f2f95d643629321deb6e905c4f1ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2c65f007e2fb471330f15475c5a2f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4340375ca8abdbd6998760c944f38d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/306b9504b52df5ad6697fa87200e8a44.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/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/2022/5/7/2974417907589120/2975171814629376/STEM/d0d68c93-7922-4a7e-8cf3-a229901059ba.png?resizew=174)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f9d682e5d3cc8573574d8d11636758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c0bfeadcf17b2a45896071f07a4a5a.png)
您最近一年使用:0次
3 . 如图,在四棱锥S-ABCD中,已知四边形ABCD是边长为1的正方形,点S在底面ABCD上的射影为底面ABCD的中心点O,点P是SD中点,且△SAC的面积为
.
![](https://img.xkw.com/dksih/QBM/2022/2/12/2914712615993344/2921233862270976/STEM/24a6d3ba-e171-4566-b1f9-1989b21c9bc4.png?resizew=263)
(1)求证:平面SCD⊥平面PAC;
(2)求点P到平面SBC的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://img.xkw.com/dksih/QBM/2022/2/12/2914712615993344/2921233862270976/STEM/24a6d3ba-e171-4566-b1f9-1989b21c9bc4.png?resizew=263)
(1)求证:平面SCD⊥平面PAC;
(2)求点P到平面SBC的距离.
您最近一年使用:0次
2022高一·全国·专题练习
名校
解题方法
4 . 如图,三棱柱
中,E,P分别是
和CC1的中点,点F在棱
上,且
,证明:
平面EFC.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dce6e65cf06f85962bf542172bc05adf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f86e2d69b11402d9d6cbb06e057778a.png)
您最近一年使用:0次
解题方法
5 . 如图,已知多面体
,其中
是边长为4的等边三角形,
平面
平面
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/5/eaac9db3-afbe-44de-9812-8e1e474bc672.png?resizew=189)
(1)证明:
平面
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9142a8490de14a87eda628ffa7e28982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4c3f9dd5d0343597a7f58a1989b537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47a6b507bfde28bba729352d6fcb925d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b8eec9376f6e6a314da534b095f090.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/5/eaac9db3-afbe-44de-9812-8e1e474bc672.png?resizew=189)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f81fa367ec317fe2a30142e1c30cce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926584088b939200d88e64318f2d4e6c.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52753d89bf58589e2e83b19bd3d140b8.png)
您最近一年使用:0次
2022-07-29更新
|
1301次组卷
|
4卷引用:江西省南昌市新建区第二中学2022-2023学年高二上学期10月学业水平考核数学试题
名校
解题方法
6 . 如图,在正三棱柱
中,
,D为棱BC的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/9/a30d26b5-d29a-4b1e-be5e-9b3819420412.png?resizew=230)
(1)证明:
∥平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92105835f8075cb75dff244e908370b5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/9/a30d26b5-d29a-4b1e-be5e-9b3819420412.png?resizew=230)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5888bec948373f3854258ad80171073d.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5888bec948373f3854258ad80171073d.png)
您最近一年使用:0次
2022-09-06更新
|
983次组卷
|
11卷引用:江西省临川第一中学2022-2023学年高二上学期期中质量监测数学试题
江西省临川第一中学2022-2023学年高二上学期期中质量监测数学试题(已下线)第八章 立体几何初步(选拔卷)-【单元测试】2021-2022学年高一数学尖子生选拔卷(人教A版2019必修第二册)河北省石家庄市藁城区第一中学2021-2022学年高一下学期5月月考数学试题福建省泉州市第七中学2022-2023学年高二上学期9月测试数学试题福建省南平市建阳第二中学2022-2023学年高二上学期第一次月考数学试题山西省山西大学附属中学校2022-2023学年高二上学期10月(第二次模块诊断测试)数学试题福建省福州延安中学2022-2023学年高二上学期10月月考数学试题专题6.5 立体几何初步(基础巩固卷)-2021-2022学年高一数学北师大版2019必修第二册吉林省白山市2020-2021学年高二上学期期末考试数学(理科)试题吉林省白山市2020-2021学年高二上学期期末考试数学(文科)试题(已下线)微专题17 空间中的五种距离问题(2)
7 . 如图1,四边形
为矩形,四边形
和
都是菱形,
,
,分别沿
将四边形
和
折起,使点
,
重合于点
,点
重合于点
,得到如图2所示的几何体.
![](https://img.xkw.com/dksih/QBM/2022/4/2/2949364543963136/2950819255648256/STEM/58f05cb6f9734f298dccc7ef6dbe5dcb.png?resizew=554)
(1)证明:平面
平面
;
(2)求图2中几何体
的体积
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e28160835023b1edf9c5bf2feef72366.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6949667eff52fb061f0e28195e853212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3e7f748d88b4eadfd1643c6b31fdf08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3de9d11e0602c2df6e403ac09ec017c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d93949d8a15aca4e79cedb978590571.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e28160835023b1edf9c5bf2feef72366.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6949667eff52fb061f0e28195e853212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/522230546d4b802094e86ceb48c2ba38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4f150ab98bde511e0f65d9bafab031.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/2022/4/2/2949364543963136/2950819255648256/STEM/58f05cb6f9734f298dccc7ef6dbe5dcb.png?resizew=554)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3061aeb57b7120be65e013dc072a085.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b312dab930cbbb9a4bb1a99f044dab73.png)
(2)求图2中几何体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be54e84508decfcce6d2fcbe6c8c1a92.png)
您最近一年使用:0次
8 . 如图所示,圆柱
中,
是母线,
为圆柱底面圆
的圆周上一点(异于点
,且
,
,
三点不共线),
为线段
的中点.
![](https://img.xkw.com/dksih/QBM/2022/7/22/3028238562820096/3030106450108416/STEM/81e25abae21d427bab109ac512911738.png?resizew=114)
(1)证明:平面
平面
;
(2)若
,
,求三棱锥
的体积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192f4f9446c954a291f779d963f90257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://img.xkw.com/dksih/QBM/2022/7/22/3028238562820096/3030106450108416/STEM/81e25abae21d427bab109ac512911738.png?resizew=114)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ae940fb91939bf3b7353067b490135e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca0f9f912766452a23c1842a6c8d4df.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01cd2bf7c88e24c91625e0f20ba2a4bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/207fdd4b8487a5c6fdfcf1e677732385.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683859edd3e91149786bbc8b0524b678.png)
您最近一年使用:0次
名校
解题方法
9 . 如图,在四棱锥P-ABCD中,ABCD为平行四边形,
,
平面ABCD,且
,E是PD的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/15/e5166a03-af3c-4ae6-a89b-06c4c2c9f03d.png?resizew=178)
(1)证明:
平面AEC;
(2)求点D到平面AEC的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98e624e6ee68b796f70f9d35e78a8aed.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/15/e5166a03-af3c-4ae6-a89b-06c4c2c9f03d.png?resizew=178)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acf2bc3dd1f1ae5d5e28b0366f454ec1.png)
(2)求点D到平面AEC的距离.
您最近一年使用:0次
2022-05-02更新
|
305次组卷
|
2卷引用:江西省金溪县第一中学2022-2023学年高二上学期第一次月考数学试题
名校
解题方法
10 . 如图,梯形ABCD中,
,
,
,
,DE⊥AB,垂足为点E.将△AED沿DE折起,使得点A到点P的位置,且PE⊥EB,连接PB,PC,M,
分别为PC和EB的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/30/8140688b-1d9b-43cf-8c3f-0f6732a0b858.png?resizew=374)
(1)证明:
平面PED;
(2)求点C到平面DNM的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9723a6e093c297b001436e8932b1820.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ad8d16722f5b9e7fd2602f14d5ffbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e530783dc49238736ed5c1157e6184dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/30/8140688b-1d9b-43cf-8c3f-0f6732a0b858.png?resizew=374)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eaa5e336f830a3e5cd60ff7a756f3ef.png)
(2)求点C到平面DNM的距离.
您最近一年使用:0次
2022-08-29更新
|
380次组卷
|
4卷引用:江西省宜春市丰城中学2023届高三上学期入学考试数学(文)试题