名校
解题方法
1 . 如图,四棱锥
中,底面ABCD为正方形,
面ABCD,
,E,F分别是PC,AD的中点.
平面PFB;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99926bf272cd757f0985c69b390ebcce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/063510e3c1fb6a7ccc3b8e3e3c7d660e.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c3425aee6c70e3c522b95e2a4e2b07.png)
您最近一年使用:0次
7日内更新
|
1036次组卷
|
6卷引用:2015-2016学年江西省赣州市高二上学期期末文科数学试卷
2015-2016学年江西省赣州市高二上学期期末文科数学试卷2016-2017学年江西丰城中学高二上月考一数学(文)试卷重庆市七校联盟2023-2024学年高一下学期5月期中联合考试数学试题(已下线)专题05 立体几何初步(2)-期末考点大串讲(苏教版(2019))(已下线)核心考点6 立体几何中组合体 B提升卷 (高一期末考试必考的10大核心考点) (已下线)专题08 期末必刷解答题专题训练的7种常考题型归类-期末真题分类汇编(北师大版2019必修第二册)
名校
2 . 如图,三棱柱ABC-A1B1C1的底面是边长为2的等边三角形,侧面ABB1A1是∠A1AB=60°的菱形,且平面ABB1A1⊥平面ABC,M是A1B1上的动点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/20/3647767c-002e-4ab9-9fbb-976480a51841.png?resizew=201)
(1)当M为A1B1的中点时,求证:BM⊥AC;
(2)求AC1与侧面ABB1A1所成的角;
(3)试求使二面角A1-BM-C的平面角最小时三棱锥M-A1CB的体积.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/20/3647767c-002e-4ab9-9fbb-976480a51841.png?resizew=201)
(1)当M为A1B1的中点时,求证:BM⊥AC;
(2)求AC1与侧面ABB1A1所成的角;
(3)试求使二面角A1-BM-C的平面角最小时三棱锥M-A1CB的体积.
您最近一年使用:0次
3 . 如图,在棱长为a的正方体ABCD-A1B1C1D1中,E、F分别是AA1与CC1的中点.
平面FBD;
(2)求平面EB1D1与平面FBD之间的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
(2)求平面EB1D1与平面FBD之间的距离.
您最近一年使用:0次
名校
4 . 三角形ABC中,AC=3、BC=4、AB=5,各边都与半径为2的球O相切.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/4/3fff2a3d-89aa-453f-a31a-2629624718cc.png?resizew=288)
(1)求球心O到三角形各边的距离;
(2)求球心O到三角形ABC所在平面的距离;
(3)求球心O到三角形各顶点的距离.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/4/3fff2a3d-89aa-453f-a31a-2629624718cc.png?resizew=288)
(1)求球心O到三角形各边的距离;
(2)求球心O到三角形ABC所在平面的距离;
(3)求球心O到三角形各顶点的距离.
您最近一年使用:0次
2022-07-02更新
|
575次组卷
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3卷引用:江西省宜春市万载中学2021-2022学年高二12月月考数学(理)试题
江西省宜春市万载中学2021-2022学年高二12月月考数学(理)试题6.1基本立体图形 测试卷-2021-2022学年高一下学期数学北师大版(2019)必修第二册(已下线)第04讲 球体专题期末高频考点题型秒杀
解题方法
5 . 如图1所示,在四边形ABCD中,
,
,
,将△
沿BD折起,使得直线AB与平面BCD所成的角为45°,连接AC,得到如图2所示的三棱锥
.
![](https://img.xkw.com/dksih/QBM/2022/1/23/2900718882832384/2917896414863360/STEM/3e8996372a2d43d485da7bfd6a3c6bc4.png?resizew=258)
(1)证明:平面ABD
平面BCD;
(2)若三棱锥
中,二面角
的大小为60°,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/650c6c818df102a83ce5159e3208d01a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b9f4b154a308c3613409cc65486644.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://img.xkw.com/dksih/QBM/2022/1/23/2900718882832384/2917896414863360/STEM/3e8996372a2d43d485da7bfd6a3c6bc4.png?resizew=258)
(1)证明:平面ABD
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1633988fd62a652de726ee92a917b52d.png)
(2)若三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f0ac3005d5ecd6d4cea0ce99a47ef3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
您最近一年使用:0次
解题方法
6 . 如图是一个正三棱柱(以
为底面)被一平面所截得到的几何体,截面为ABC.已知
,
,M为AB中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/419bf13f-84ad-4e39-abd5-decc5e2f39ac.png?resizew=163)
(1)证明:
平面
;
(2)求此几何体的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d9e7dc803dc76b187d9d5d19754c73a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c122ca7141c43c15c783968f5f0dbc19.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/419bf13f-84ad-4e39-abd5-decc5e2f39ac.png?resizew=163)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34cf61780928291d51c7bbb08a5fcf81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
(2)求此几何体的体积.
您最近一年使用:0次
名校
解题方法
7 . 在四棱锥
中,底面
是直角梯形,
,
,
,
分别是棱
,
的中点.
![](https://img.xkw.com/dksih/QBM/2022/1/21/2899231840321536/2902340650344448/STEM/e33bb52e-b185-4986-8bd7-1801e37e071c.png?resizew=215)
(1)证明:
平面
;
(2)若
,且四棱锥
的体积是6,求三棱锥
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/d730ae4307db56b47849c3a19dedfb3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9060f03b9ee41d70d135b1e1a8902ce9.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/2022/1/21/2899231840321536/2902340650344448/STEM/e33bb52e-b185-4986-8bd7-1801e37e071c.png?resizew=215)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f9d682e5d3cc8573574d8d11636758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e84094aedc798143d465276916c1b9a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f09d555c9022f7546fe4a678b599376.png)
您最近一年使用:0次
2022-01-25更新
|
515次组卷
|
7卷引用:江西省赣州市赣县第三中学2021-2022学年高二下学期开学考试数学(文)试题
解题方法
8 . 如图1是一张长方形铁片
,
,
,
,
分别是
,
的中点,
,
分别在边
,
上,且
,将它卷成一个圆柱的侧面图2,使
与
重合,
与
重合.
![](https://img.xkw.com/dksih/QBM/2022/1/19/2897873138909184/2901977249169408/STEM/56c7a968-a1ad-4aa6-9230-435e0091c03e.png?resizew=464)
(1)求证:
平面
;
(2)求几何体
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdcfe69b939fd1c271747fe9d37ccdf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a488ca93bcc553f15905a763c8222a92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6655cc150ddc9deba2254780984d0024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6024fd4532f5f981deac4582c799a6ef.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/6655cc150ddc9deba2254780984d0024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6024fd4532f5f981deac4582c799a6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7923c154d77e5fe0f2215bc5bd4d2e82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/2022/1/19/2897873138909184/2901977249169408/STEM/56c7a968-a1ad-4aa6-9230-435e0091c03e.png?resizew=464)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a22d6b860f06fe23618b0d3de6768fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/646084b7f3902efa4c462ed67599265a.png)
(2)求几何体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cb139a7478ff515f18d3f44197fcfd9.png)
您最近一年使用:0次
名校
9 . 如图,在三棱锥
中,
,
,记二面角
的平面角为
.
![](https://img.xkw.com/dksih/QBM/2022/1/18/2897194429530112/2901506781315072/STEM/32365e75-8b0f-4b21-9911-f6915a1fbd7b.png?resizew=192)
(1)若
,
,求三棱锥
的体积;
(2)若M为BC的中点,求直线AD与EM所成角的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4357d5744046d4d44abb09e1ee35fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c2a8695e1a998c537051887b946d4c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4ab7e657f01bdfa235f8c4d6681d13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f0ac3005d5ecd6d4cea0ce99a47ef3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://img.xkw.com/dksih/QBM/2022/1/18/2897194429530112/2901506781315072/STEM/32365e75-8b0f-4b21-9911-f6915a1fbd7b.png?resizew=192)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3e186ebc624ebacde9a03b96289f1ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4357d5744046d4d44abb09e1ee35fcb.png)
(2)若M为BC的中点,求直线AD与EM所成角的取值范围.
您最近一年使用:0次
2022-01-24更新
|
4633次组卷
|
10卷引用:江西省上饶市广丰区重点高中2022-2023学年高二上学期第三次月考数学试题
江西省上饶市广丰区重点高中2022-2023学年高二上学期第三次月考数学试题广东省佛山市2021-2022学年高二上学期期末数学试题吉林省东北师范大学附属中学2022-2023学年高二上学期第一次月考数学试题湖北省襄阳市第五中学2023-2024学年高二上学期新起点考试数学试题江苏省盐城市五校联考2022-2023学年高二下学期5月阶段性测试数学试题(已下线)高二数学上学期期中模拟卷02(原卷版)(已下线)难关必刷01 空间向量的综合应用-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(人教A版2019选择性必修第一册)(已下线)第一章 空间向量与立体几何(压轴题专练,精选20题)-2023-2024学年高二数学单元速记·巧练(人教A版2019选择性必修第一册)(已下线)专题08 空间向量基底法在立体几何问题中的应用4种常见考法归类 - 【考点通关】2023-2024学年高二数学高频考点与解题策略(人教A版2019选择性必修第一册)浙江省金华十校2021-2022学年高一下学期期末模拟数学试题
10 . 如图,四边形
为正方形,若平面
,
,
,
.
![](https://img.xkw.com/dksih/QBM/2022/1/5/2887979288412160/2890845170040832/STEM/91c72497-72ea-44c2-a345-b6f4f97c2aa5.png?resizew=149)
(1)在线段
上是否存在点
,使平面
平面
,请说明理由;
(2)求多面体
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80b8a96aa2ac20fce0b875f2e7f03b76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a0e5697eca3f5205cb7b343648240bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2fc7a36f9d217f4a7d6e60d17e04199.png)
![](https://img.xkw.com/dksih/QBM/2022/1/5/2887979288412160/2890845170040832/STEM/91c72497-72ea-44c2-a345-b6f4f97c2aa5.png?resizew=149)
(1)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5ea0eefe8be607ab4e05786dda72c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8257b6bd25104e07b9ad935c0a3aac4.png)
(2)求多面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
您最近一年使用:0次
2022-01-09更新
|
1079次组卷
|
8卷引用:江西省抚州市临川第一中学2021-2022学年高二下学期第一次月考数学(文)试题
江西省抚州市临川第一中学2021-2022学年高二下学期第一次月考数学(文)试题黑龙江省哈尔滨德强学校2021-2022学年高三上学期期末考试数学(文)试题(清北班)四川省泸州市2021-2022学年高三第一次教学质量诊断性考试数学(文)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)宁夏回族自治区银川一中2022届高考三模数学(文)试题专题6.4 空间中的垂直关系-2021-2022学年高一数学北师大版2019必修第二册陕西省咸阳市武功县普集高级中学2023届高三下学期九模文科数学试题(已下线)考点9 垂直的判定与性质 2024届高考数学考点总动员【练】