1 . 已知正四面体
的外接球半径为3,MN为其外接球的一条直径,P为正四面体
表面上任意一点,则
的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e057c31608d8a78166c09ddeb3a5a3.png)
您最近一年使用:0次
2021-07-09更新
|
1053次组卷
|
7卷引用:江西省宜春市丰城市第九中学2024届高三上学期12月月考数学试题
江西省宜春市丰城市第九中学2024届高三上学期12月月考数学试题安徽省高中教科研联盟2020-2021学年高二下学期期末联考理科数学试题(已下线)1.1空间向量及其运算(专题强化卷)-2021-2022学年高二数学课堂精选(人教版A版2019选择性必修第一册)福建省三明第一中学2021-2022学年高二上学期第一次月考数学试题湖南省长沙市第一中学2024届高三上学期月考(二)数学试题广东省佛山市南海区九江中学2024届高三上学期10月月考数学试题(已下线)模型2 活用“极化恒等式”处理数量积模型(高中数学模型大归纳)
解题方法
2 . 已知四棱柱
的底面为菱形,
底面
,
,
,
,点
是线段
上靠近
的四等分点,动点
在四棱柱
的表面,且
,则动点
的轨迹长度为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51d0fdc5a00ca0e857b89a7e1420df29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ec435aa1401dbce7863b531bf2f3e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/370ad2e20e4d6eed9c2101209731a1f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
您最近一年使用:0次
2021-05-30更新
|
363次组卷
|
2卷引用:江西省2021届高三5月适应性大练兵联考数学(理)试题
解题方法
3 . 在三棱锥
中,
是等边三角形,平面
平面
,
,则三棱锥
的外接球体积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fbfcae2cecc98e2d6c16dde6d3ec1c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d077f6da8b2c00b152d4679aa2ed7f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c78c5ccba4b5f2e63e99d036f2402dca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f604584d80ee1e71616275106ad1c104.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
4 . 在四棱锥
中,
平面
,四边形
是平行四边形,
,
,
,经过直线
且与直线
平行的平面交直线
于点
,则三棱锥
的外接球的表面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e2e341788ce1be913bc47b3831c6baa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ecf072589c0f901d92f6bda111d841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b96fac11d72f72c805dbddb8da72d68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92535536bd3c2761724fd058427f95a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1719410d21e3de1242366ce2965e838c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.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/ddfe0ccf24d760c77535a70c92dad145.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-03-23更新
|
643次组卷
|
2卷引用:江西省九所重点中学(玉山一中、临川一中等)2021届高三3月联合考试数学(文)试题
名校
解题方法
5 . 在边长为1的正方体
中,球
同时与以
为公共顶点的三个面相切,球
同时与以
为公共顶点的三个面相切,且两球相切于点
,若球
,
半径分别为
,
,则
的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4f6f74444b2b7947fc6e35c8d62322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4f6f74444b2b7947fc6e35c8d62322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2858005b9ae89ae080d83dcc13cf8e81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b3e95410f3b4fcb0cba425b521d1f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4ac568fb78e39caceec1b44eb136ce.png)
您最近一年使用:0次
2021-02-04更新
|
338次组卷
|
2卷引用:江西省赣州市2021届高三上学期期末考试数学(理)试题
名校
解题方法
6 . 已知正四棱柱
的底面边长
,侧棱长
,它的外接球的球心为
,点
是
的中点,点
是球
上的任意一点,有以下命题:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/18/41764a8d-626a-40d5-8143-d35e3bc1abe4.png?resizew=173)
①
的长的最大值为9;
②三棱锥
的体积的最大值是
;
③存在过点
的平面,截球
的截面面积为
;
④三棱锥
的体积的最大值为20;
其中是真命题的序号是___________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51f7ce48fc259dac927c95afe4ffbf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/18/41764a8d-626a-40d5-8143-d35e3bc1abe4.png?resizew=173)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
②三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2cb6f19080f8be382b484274b2476c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/031661aa4b14c3b9954ec444ad5b6f05.png)
③存在过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7ae3e6e1924f2f92529860e905c9d32.png)
④三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d103b4b86ded749a0e4a6255cccd8fe.png)
其中是真命题的序号是
您最近一年使用:0次
名校
解题方法
7 . 已知球
是棱长为1的正方体
的外接球,
为棱
中点,现在棱
和棱
上分别取点
,
,使得平面
与正方体各棱所成角相等,则平面
截球
的截面面积是__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.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/52173c8cc44246823c2bee21a783b731.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52173c8cc44246823c2bee21a783b731.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
您最近一年使用:0次
2020-10-18更新
|
479次组卷
|
4卷引用:江西省宁冈中学2021-2022学年高二11月第二次段考数学(理)试题
名校
解题方法
8 . 已知棱锥
的侧棱
、
、
两两垂直,
,
,
,则它的外接球的表面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b80ee363635d73f601654339028daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c327b3e91d8bea53255d9308a952a276.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/222cead0c4b6c1e2f0e333dfb54ec44c.png)
您最近一年使用:0次
2020-07-15更新
|
500次组卷
|
2卷引用:江西省贵溪市实验中学2020-2021学年高二上学期第一次月考数学(文)试题
名校
解题方法
9 . 将正三棱锥
置于水平反射镜面上,得一“倒影三棱锥”
,如图.下列关于该“倒影三棱锥”的说法中,正确的有________________ .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/60f7251e-4c86-4dc8-94a7-8ea6027dde04.png?resizew=130)
①
平面
;
②若
在同一球面上,则
也在该球面上;
③若该“倒影三棱锥”存在外接球,则
;
④若
则
的中点必为“倒影三棱锥”外接球的球心
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4f80ed46d0029beac617c55dc26a71f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/60f7251e-4c86-4dc8-94a7-8ea6027dde04.png?resizew=130)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b61346bd4091070ba84a4046f87f365.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90a0889f0f80987c260cce05be4c84b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
③若该“倒影三棱锥”存在外接球,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82f3e6210170c082ce1dd414f769f8a6.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7566567436df13d0d817243021f02ed7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
您最近一年使用:0次
2020-04-16更新
|
534次组卷
|
4卷引用:江西省南昌县莲塘第一中学2020-2021学年高二上学期期末数学(理)试题
名校
10 . 在三棱锥
中,
,
,点
到底面
的距离为
,若三棱锥
的外接球表面积为
,则
的长为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f59b14c3d84252c154308b73549572c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2804428c789eff0c917c50ac9aae0961.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
您最近一年使用:0次
2020-01-31更新
|
2705次组卷
|
13卷引用:江西省贵溪市实验中学2020--2021学年高二12月月考文科数学试题
江西省贵溪市实验中学2020--2021学年高二12月月考文科数学试题2020届福建省莆田市(第一联盟体)学年上学期高三联考文科数学试题2020届高三2月第01期(考点07)(文科)-《新题速递·数学》福建省莆田市第一联盟体2019-2020学年高三上学期期末联考数学(文)试题(已下线)第08章+立体几何初步(A卷基础篇)-2020-2021学年高一数学必修第二册同步单元AB卷(新教材人教A版)黑龙江省大庆市第二中学2020-2021学年高一下学期期末数学试题(已下线)专题8-3 一网打尽外接球-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)山西省太原师范学院附属中学、太原市师苑中学校2021-2022学年高一下学期第四次联考数学试题新疆生产建设兵团第二中学2021-2022学年高一下学期期末考试卷数学试题云南省昆明市第二十四中学2023届高三下学期教学质量第二次监测数学(理)试题云南省安宁市第一中学2023届高三省测数学模拟试题(已下线)8.3.2 圆柱、圆锥、圆台、球表面积和体积(分层作业)-【上好课】2022-2023学年高一数学同步备课系列(人教A版2019必修第二册)(已下线)专题17 球面几何(外接球、内切球和棱切球)-3