1 . 如图,网格纸上小正方形边长为
,粗线画出的是某几何体的三视图,则该几何体的体积为
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/5f1f5de0-e324-4d1d-98ce-3b914435bd67.png?resizew=150)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/5f1f5de0-e324-4d1d-98ce-3b914435bd67.png?resizew=150)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-01-24更新
|
2368次组卷
|
4卷引用:【市级联考】江西省九江市2019届第一次高考模拟统一考试数学试题(理科)
名校
解题方法
2 . 正方体
的棱长为1,点
是棱
的中点,点
都在球
的球面上,则球
的表面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aa880f381b117ed4026c0e92a362960.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-05-12更新
|
1481次组卷
|
6卷引用:2020届山东省聊城市高三高考模拟(一)数学试题
名校
3 . 如图是一个由正四棱锥
和正四棱柱
构成的组合体,正四棱锥的侧棱长为6,
为正四棱锥高的4倍.当该组合体的体积最大时,点
到正四棱柱
外接球表面的最小距离是
![](https://img.xkw.com/dksih/QBM/2020/5/12/2461211996626944/2461863669440512/STEM/ee1762c5-f669-48ee-ba3d-bc198cba8987.png?resizew=141)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724625d4f91f0e48712d6d143a6389b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://img.xkw.com/dksih/QBM/2020/5/12/2461211996626944/2461863669440512/STEM/ee1762c5-f669-48ee-ba3d-bc198cba8987.png?resizew=141)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-05-13更新
|
1502次组卷
|
6卷引用:天一大联考2019-2020学年高三毕业班阶段性测试(五)理科数学试题
名校
解题方法
4 . 棱长为2的正方体
内有一个内切球
,过正方体中两条异面直线
,
的中点
作直线,则该直线被球面截在球内的线段的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
A.![]() | B.![]() | C.![]() | D.1 |
您最近一年使用:0次
2020-04-22更新
|
1510次组卷
|
7卷引用:2020届内蒙古包头市高三第一次模拟考试 数学(理)试题
2020届内蒙古包头市高三第一次模拟考试 数学(理)试题四川省泸州市泸县第一中学2020届高三下学期第四学月考试数学(文)试题(已下线)江西省南昌市南昌外国语学校2019-2020学年高二下学期立体几何月考数学试题四川省泸州市泸县第一中学2020届高三下学期第四次月考试数学(理)试题(已下线)重难点 03 空间向量与立体几何-2021年高考数学(理)【热点·重点·难点】专练福建省福州第八中学2023届高三上学期质检四数学试题河南省郑州外国语学校2022-2023学年高三上学期第四次调研考试文科数学试题
5 . 如图所示,在三棱锥
中,
平面
,
,
,且
为
的中点,
于
,当
变化时,则三棱锥
体积的最大值是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/972ea9c1-95af-4d66-a47b-b252066064ca.png?resizew=151)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ffc6952e988d04f22f0fb2f7f0ab7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cbb05b8b630052ff544249ebd72d95d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9a4950a6e4202efd609507964af238b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f392902d611863c6908a48e696e7bd8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b115316e0fcd2ef46a4dd383472996e4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/972ea9c1-95af-4d66-a47b-b252066064ca.png?resizew=151)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-10-18更新
|
1478次组卷
|
6卷引用:山东省新高考测评联盟2020-2021学年第一学期高二10月联考数学试题
山东省新高考测评联盟2020-2021学年第一学期高二10月联考数学试题(已下线)热点08 立体几何-2021年高考数学【热点·重点·难点】专练(山东专用)(已下线)专题06 空间向量与立体几何(数学思想与方法)-备战2022年高考数学二轮复习重难考点专项突破训练(全国通用)(已下线)重难点09五种空间向量与立体几何数学思想-1山东省威海市乳山市银滩高级中学2022-2023学年高二上学期9月月考数学试题(已下线)第二章 立体几何中的计算 专题七 空间范围与最值问题 微点3 面积、体积的范围与最值问题(一)【基础版】
6 . 正三棱柱
的各条棱的长度均相等,
为
的中点,
,
分别是线段
和线段
上的动点
含端点
,且满足
,当
,
运动时,下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/2022/6/2/2992725096931328/2993187016417280/STEM/b01c93e8-1d8d-41cd-925e-bb3fb5fbe618.png?resizew=180)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ede6a60cad0e0b58e1549fda6e085719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0c640abbdc470479407da1ae2aa80fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c5b6dfff10cb3dc3e06509db56d7b9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b094e639c2b31dc54b1b3e6456e77843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b9c3b21f5d0ac85d4fffbcfa1058b0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://img.xkw.com/dksih/QBM/2022/6/2/2992725096931328/2993187016417280/STEM/b01c93e8-1d8d-41cd-925e-bb3fb5fbe618.png?resizew=180)
A.在![]() ![]() |
B.平面![]() ![]() |
C.三棱锥![]() |
D.![]() |
您最近一年使用:0次
2022-06-03更新
|
684次组卷
|
12卷引用:辽宁省抚顺市2020-2021学年高二上学期期中考试数学试题
辽宁省抚顺市2020-2021学年高二上学期期中考试数学试题(已下线)2021年高考数学押题预测卷(山东卷)02湖南师范大学附属中学2021届高三下学期三模数学试题北师大版(2019) 必修第二册 金榜题名 模块素养评价湖南师大附中2021届高三高考数学模拟试题(三)湖北省部分重点中学2022届高三下学期4月联考数学试题重庆市第八中学校2022届高三下学期调研检测(十五)数学试题山东省潍坊市2022届高三下学期5月模拟数学试题(二)(已下线)三轮冲刺卷07-【赢在高考·黄金20卷】备战2022年高考数学模拟卷(新高考专用)(已下线)模块三 专题2 小题进阶提升练(1)(苏教版)广东省深圳市聚龙科学中学2022-2023学年高一下学期第二次中段考数学试题(已下线)专题14 立体几何常见压轴小题全归纳(练习)
名校
解题方法
7 . 已知梯形
中,
,
,
,
,
分别是
,
上的点,
,
,沿
将梯形
翻折,使平面
平面
(如图).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/0966c234-3aa3-4983-99d6-65cfbaf4312e.png?resizew=309)
(1)当
时,①证明:
平面
;②求二面角
的余弦值;
(2)三棱锥
的体积是否可能等于几何体
体积的
?并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d3947804a878a87052c266be475423.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fcb0ab3b6099434e4cdde2ea871f3f1.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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d459cad63e3cd2aba10862800fa4832.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c30f73c718bde8352055a14987fc15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77d8c77f758b4a06c320be39ecb328f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e826b8202fa0e17245dcc68426c923a9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/0966c234-3aa3-4983-99d6-65cfbaf4312e.png?resizew=309)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a5f445af1ae136773cb338920552ff2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febe72169c8dd4ecb57eadf7256dcbeb.png)
(2)三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67445ee86986aa474e8d71641d46b2e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b575beb309541b02c629700b21e9c8a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d86ab7c97cd8a0b15ba5efc1be94230.png)
您最近一年使用:0次
2020-08-16更新
|
1431次组卷
|
7卷引用:浙江省绍兴市鲁迅中学2019-2020学年高二上学期期中数学试题
8 . 如图,菱形
的边长为
,
,
,将菱形
沿对角线
折起,得到三棱锥
,点
是棱
的中点,
.
![](https://img.xkw.com/dksih/QBM/2018/6/25/1975123304800256/null/STEM/2f79d6cb40b6435bbedbe04f0d268880.png?resizew=359)
(
)求证:
平面
.
(
)求证:平面
平面
.
(
)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a14b9e6dfaf58b8159e4f2d3b9bd6645.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f4c1ba8858e3a21de22315e5a0b1353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93f93febecbed16fb12a40424cc5be74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3926b75121355e46986708f3cb8cac73.png)
![](https://img.xkw.com/dksih/QBM/2018/6/25/1975123304800256/null/STEM/2f79d6cb40b6435bbedbe04f0d268880.png?resizew=359)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ce1ac49efbb1ef090f2cec1360ca55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10c6ee63b22008f64730404a63967d11.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99bfa2ca4e398c8ab0f97f47add3754f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/657ffb23fab8129beb441b0c681e3dab.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c392e7a5af629bd60c1f91fbb8d5a68.png)
您最近一年使用:0次
9 . 已知
为半径为
的球面上的四点,其中
间的球面距离分别为
,
,
,若
,其中
为球心,则
的最大值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f3a0f66bacf0d50bd22079147fde42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942e6dafcfcbf0682856b9f25178694d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/268d034569bc3d98fef42901a335e1c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6aa66831eccee8eaecd201209444de1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6aa66831eccee8eaecd201209444de1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e100f628a192a39081cf01af7de480e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1433c8103033c67232f2f9ae189608d.png)
您最近一年使用:0次
2019-09-23更新
|
1728次组卷
|
11卷引用:上海市宝山区交大附中2018-2019学年高二下学期期中数学试题
上海市宝山区交大附中2018-2019学年高二下学期期中数学试题上海市交通大学附属中学2018-2019学年高二下学期期中数学试题湖北省部分重点中学2022届高三上学期第二次联考数学试题1(已下线)专题06 空间向量与立体几何(突破训练)-备战2022年高考数学二轮复习重难考点专项突破训练(全国通用)(已下线)1.2空间向量基本定理C卷(已下线)1.2 空间向量基本定理(AB分层训练)-【冲刺满分】2023-2024学年高二数学重难点突破+分层训练同步精讲练(人教A版2019选择性必修第一册)(已下线)高二上学期第一次月考填空题压轴题50题专练-2023-2024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)(已下线)1.2 空间向量基本定理【第三课】(已下线)专题 1.1 空间向量基本定理及基底求最值12种题型(3)(已下线)专题 01 空间基底及综合应用(3)(已下线)专题 01 空间基底及综合应用(4)
名校
解题方法
10 . 已知一个几何体的三视图如图所示,俯视图为等腰三角形,则该几何体的外接球表面积为( )
![](https://img.xkw.com/dksih/QBM/2020/5/21/2467729580007424/2470392236949504/STEM/dae673be-b142-430b-9ad7-e4492da0eb36.png)
![](https://img.xkw.com/dksih/QBM/2020/5/21/2467729580007424/2470392236949504/STEM/dae673be-b142-430b-9ad7-e4492da0eb36.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-05-25更新
|
1445次组卷
|
6卷引用:2020届安徽省芜湖市示范高中高三下学期5月联考文科数学试题