名校
解题方法
1 . 如图,已知直四棱柱
的底面是边长为2的正方形,
,
分别为
,
的中点.
、
、
交于一点;
(2)若
,求多面体
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.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/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15dc61d5de97b5a40be925b278ae494c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55a2310cbba5e050488cd9296eb195d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88f7a1a22ae7dccd9040cc1f5cb3b3c4.png)
您最近一年使用:0次
2023-08-16更新
|
1190次组卷
|
11卷引用:四川省泸州市2021届高三第二次教学质量诊断性考试文科数学试题
四川省泸州市2021届高三第二次教学质量诊断性考试文科数学试题四川省合江县马街中学校2023届高三三诊模拟文科数学试题四川省内江市威远中学2023-2024学年高二上学期第一次月考数学试题(已下线)第七章 立体几何与空间向量(测试)(已下线)考点5 共线与共面问题 2024届高考数学考点总动员【讲】(已下线)第一章 点线面位置关系 专题三 共点问题 微点2 立体几何共点问题的解法综合训练【基础版】(已下线)第一章 点线面位置关系 专题三 共点问题 微点1 立体几何共点问题的解法【培优版】(已下线)第06讲 8.4.1 平面-【帮课堂】(人教A版2019必修第二册)(已下线)高一下学期期中复习解答题压轴题十八大题型专练(2)-举一反三系列(人教A版2019必修第二册)(已下线)专题13.2平面的基本性质-重难点突破及混淆易错规避(苏教版2019必修第二册)(已下线)第十一章:立体几何初步章末重点题型复习(1)-同步精品课堂(人教B版2019必修第四册)
名校
2 . 如图1,在边长为2的正方形
中,
,
分别是
,
的中点,将
,
,
分别沿
,
,
折起,使
重合于点
,得到如图2所示的三棱锥
,有下列判断:①
平面
;②
在面
的射影为
的垂心;③三棱锥
的外接球体积为
;④二面角
的余弦值为
.其中正确的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5df7626240940eb340420a605e95aeee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2ea13010e2399194be2a681310543e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38335830b93ac4d99c28a8e209eecb3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16fd1bc6147d69777b26a35d48522f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d246f9eceab371ebf47a47c2f11a4ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134ef0b1a2669a09f05bd4dc2496f706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16fd1bc6147d69777b26a35d48522f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefdcd39676298f214654051fc51ba92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb3d49759594355505caaf42691e5363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/24/70b6a910-1e57-459b-b15a-f5b2565aeb90.png?resizew=327)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
3 . 如图所示,在四棱锥
中,
平面
,
是线段
的中垂线,
与
交于点
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d1f1331818468099accbf5d84a12c1.png)
(1)证明:平面
平面
;
(2)求点B到平面
的距离.
![](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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d1f1331818468099accbf5d84a12c1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/24/9a55095a-4750-4943-a4a7-8e18febdacf9.png?resizew=150)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f04c222223dae9ef27d4c132534d9848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)求点B到平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
您最近一年使用:0次
名校
解题方法
4 . 已知四面体
中,
,
,直线
与
的夹角为
,
,其外接球半径为
,则其体积最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bd6a2b112facda441f4e34bf5c145fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
5 . 已知某几何体的三视图如图所示,则该几何体的外接球表面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/92675ec5-41e3-4d4d-bbfd-3c3f5c22c1b6.png?resizew=182)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/92675ec5-41e3-4d4d-bbfd-3c3f5c22c1b6.png?resizew=182)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
6 . 一个几何体的三视图如图所示,其中正视图是一个正三角形,则这个几何体的外接球的表面积为( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/175cfbd5-0e39-4d74-8019-348a49366045.png?resizew=195)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/175cfbd5-0e39-4d74-8019-348a49366045.png?resizew=195)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-02-25更新
|
179次组卷
|
2卷引用:四川省成都市成都市石室天府中学2020-2021学年高二下学期5月月考数学文科试题
名校
解题方法
7 . 图甲所示的平面五边形
中,
,
,
,
,
,现将图甲所示中的
沿
边折起,使平面
平面
得如图乙所示的四棱锥
.在如图乙所示中.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/27/358fe606-70e1-4ecc-81c6-99fc3d485376.png?resizew=301)
(1)求证:
平面
.
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1e3a43d0fa18f6c0888ba804d5b329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e4e619da064751e750afca7d1244d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5a7b519121b3b785d95f32e5b4fbd4.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/0b6e3e900a2d5c052d719b0d4f823c8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a675310c8ba418e5a59beb7317e21e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.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/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/27/358fe606-70e1-4ecc-81c6-99fc3d485376.png?resizew=301)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c482ee1668a59ca21f3ae8b6bad58eae.png)
您最近一年使用:0次
2023-02-25更新
|
272次组卷
|
3卷引用:四川省成都市成都市石室天府中学2020-2021学年高二下学期5月月考数学文科试题
8 . 已知四棱锥
的底面ABCD是正方形,SA⊥底面ABCD,E是SC上的任意一点.
(2)设
,求点A到平面SBD的距离;
(3)当
的值为多少时,二面角
的大小为
?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cfa640cf1e466119481efe1eb587863.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e8d821ea1e4a2a099b4ec6b175db481.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c53f1e79257ff52a0408fdc482488d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231b861d6d1f1d0b9f52b041cb40eb62.png)
您最近一年使用:0次
2022-11-05更新
|
734次组卷
|
9卷引用:四川省绵阳中学2022届高三上学期第一次质量检测数学试题
四川省绵阳中学2022届高三上学期第一次质量检测数学试题上海市实验学校2020-2021学年高二下学期期末数学试题(已下线)2021年秋季高三数学开学摸底考试卷02(新高考专用)(已下线)专题1.11 空间向量与立体几何大题专项训练(30道)-2021-2022学年高二数学举一反三系列(人教A版2019选择性必修第一册)河北省石家庄市藁城区第一中学2020届高三下学期月考二数学(理)试题上海市彭浦中学2022-2023学年高二上学期期中数学试题(已下线)3.4 空间向量在立体几何中的应用(作业)(夯实基础+能力提升)-【教材配套课件+作业】2022-2023学年高二数学精品教学课件(沪教版2020选修第一册)(已下线)核心考点05 空间向量及其应用(2)选择性必修第一册综合测试卷-2022-2023学年高二上学期数学人教B版(2019)
9 . 如图,已知圆
的直径
长为 2 ,上半圆圆弧上有一点
,点
是劣弧
上的动点,点
是下半圆弧上的动点,现以
为折线,将上、下半圆所在的平面折成直二面角,连接
则三棱锥
的最大体积为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c76742b51590b09ac5b3083c3f04262c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f38a765027a32ad93c4391c842658f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667349d99185bb045030b733352ff7fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c76742b51590b09ac5b3083c3f04262c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02a85ddbb7ce8d115ff7e4412dedea2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23d352cc181bd3e1172014eadc9ab0e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/13/1ac91a95-a0b6-4ea6-8a82-3d382a269d29.png?resizew=329)
您最近一年使用:0次
2022-09-12更新
|
331次组卷
|
4卷引用:四川省宜宾市2020-2021学年高一下学期期末数学试题
四川省宜宾市2020-2021学年高一下学期期末数学试题四川省绵阳市盐亭中学2022-2023学年高二上学期入学考试数学试题(已下线)第03讲 直线、平面平行垂直的判定与性质(练)(已下线)考向30 立体几何中的最值、翻折、探索性问题(重点)
解题方法
10 . 如图,在四棱锥
中,
,
,
,AB=AC=2,AE=ED=1.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/1b66493c-c26b-4f22-87d8-9c5efe2a5712.png?resizew=171)
(1)若F为AC中点,G为AB中点,
,求证:
平面BCD;
(2)若平面
平面ABC,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f9045e6cd575bbe76c89ef6ef852fd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7bd02e0adeae92ba9526261b1baf797.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/032b3e422eeb39cf649dffc9934a7cf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/1b66493c-c26b-4f22-87d8-9c5efe2a5712.png?resizew=171)
(1)若F为AC中点,G为AB中点,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c97a7fab5d1550e2fef66772cc985fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f5d62dcf1c173fe35595dfed43f9c87.png)
(2)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31effd1d3f7ce1f6e57be80c7f3af4ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b9fac14c8330781420fa076b2e04e77.png)
您最近一年使用:0次