1 . 如图,在直三棱柱
中,
,D,E分别为
,
分如中点,则过点A,D,E的截面与三棱柱的侧面
的交线的长为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f3be3dcde7b744f420a588cb8dd5b01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
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2021-05-28更新
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1185次组卷
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3卷引用:学海导航全国卷大联考2021届高三数学(文)试题
2 . 已知直三棱柱
中,
,
,且
,若点
为
中点,点
为
中点,且
,平面
交底面棱
于点
,且满足
,则多面体
的体积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fd2cfeefe26ede77898e077de3f7c72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d97f616f0f32beed421129cbbb4db8d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1833908f4db7c8dd708b75b9cade819a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcf08c283a57c03de8db6d64b1e2218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcdb0295b373c6e306ca0dcf86f8b941.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c040ffc7bf5a6f812fc54c2b89831bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50dde05e655c5f6d4ef1c0c5b9fff13b.png)
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名校
解题方法
3 . 如图,在四棱锥
的展开图中,四边形
是矩形,
是等边三角形,
.若四棱锥
的外接球表面积为
,则四棱锥
的外接球半径为_______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84cd6d54d0eaaf4e5dcc38200dfcd253.png)
_________ .
![](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/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6be3fb537e1a66eec58782226f094f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed4debdfbb1e716f8f02397def5d25a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84cd6d54d0eaaf4e5dcc38200dfcd253.png)
![](https://img.xkw.com/dksih/QBM/2021/5/19/2724391176544256/2726790507995136/STEM/3c066fd4-4bb0-49bf-aea0-765d5717d368.png?resizew=267)
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2021-05-22更新
|
616次组卷
|
3卷引用:山东省2021年普通高等学校招生全国统一考试模拟数学试题
2021高三·全国·专题练习
解题方法
4 . 在棱长为
的正方体
中,
,
分别为
,
的中点,点
在棱
上,
,若平面
交
于点
,四棱锥
的五个顶点都在球
的球面上,则球
半径为_________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039be12370b46e70e0d40701edd1d88f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/658b227f7d089da9e1de8112474996b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7758b36af1d6e2cda4ffa86b691f84f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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解题方法
5 . 体积为
的四棱锥
的底面是边长为
的正方形,底面
的中心为
,四棱锥
的外接球球心
到底面
的距离为
,则点
的轨迹长度为_______________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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2021-05-21更新
|
1234次组卷
|
5卷引用:黑龙江省哈尔滨市第三中学2021届高三第四次模拟考试数学(文)试题
黑龙江省哈尔滨市第三中学2021届高三第四次模拟考试数学(文)试题江西省抚州市临川第一中学2021-2022高二12月月考数学(理)试题(已下线)考点突破08 立体几何初步-备战2022年高考数学一轮复习培优提升精炼(新高考地区专用)黑龙江省鹤岗市第一中学2021-2022学年高一下学期期末考试数学试题黑龙江省双鸭山市第一中学2021-2022学年高一下学期期末数学试题
6 . 如图,在四棱锥
中,底面ABCD为边长为4的正方形,
,
,则四棱锥
外接球的表面积为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecbb2dce15f3d0fe839688575d2a8ff8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/426953ae2ddba3f02753ac3244cfbd7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/1b6e98d3-22f4-4dad-ab34-20b9d3a9d487.png?resizew=136)
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2021·全国·模拟预测
7 . 已知正方体
的棱长为1,
为
的中点,
为
上靠近
的三等分点,
为
上靠近
的四等分点.设过
,
,
三点的平面与
交于点
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d151cd24c2f9c320eb54e69d71e5cb46.png)
______ .
![](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/394c5d2f55221975503be8aa18022480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.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/5963abe8f421bd99a2aaa94831a951e9.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/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d151cd24c2f9c320eb54e69d71e5cb46.png)
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名校
8 . 已知圆
,点
在直线
上运动,若圆
上存在两点
,
,使得
,则点
的坐标是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7f25834d8218c53cb975c2a2fe7442a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c6d3c99b7004603ba9ea9c341b8b3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83640592853a53872d7af69c0cffc1bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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2021-05-17更新
|
1010次组卷
|
5卷引用:江西省萍乡市2021届高三二模考试数学(理)试题
江西省萍乡市2021届高三二模考试数学(理)试题(已下线)第02讲 直线与圆的位置关系-【帮课堂】2021-2022学年高二数学同步精品讲义(苏教版2019选择性必修第一册)重庆市南开中学校2021-2022学年高二上学期11月月考数学试题(已下线)2.2 直线与圆的位置关系(1)-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册)(已下线)第1讲 直线与圆(练)-2022年高考数学二轮复习讲练测(新教材·新高考地区专用)
解题方法
9 . 如图,在矩形
中,
是边
的中点,将
沿直线
折成
,使得二面角
的平面角为锐角,点
在线段
上运动(包括端点),当直线
与平面
所成角最大时,
在底面
内的射影面积为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d74b88cc2acf0ffdb4a9856486590049.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/456eca507c25b85eee72e2d4d16ff971.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8267d832508d4bee00ff2d4a4bd2b6e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e663220a66eff19da6a71e46b397db2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b12cffc313a181f666e3fc8e66b6f59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7654b4dbc0f9ba23055f4cb65560a223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/2021/5/6/2715307526684672/2718970974470144/STEM/e4147aa0-5533-4c75-acb0-6bab76912f35.png?resizew=304)
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名校
10 . 在三棱锥
中,平面
平面
,
,
,
,若三棱锥
的四个顶点都在同一个球面上,则该球的表面积为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4357d5744046d4d44abb09e1ee35fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d7090639341730951c1bc3c9b6164e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5441d73845911db1993bf903c4d8700f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7b593497504e969c0eee7323ea788b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4357d5744046d4d44abb09e1ee35fcb.png)
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2021-05-11更新
|
2139次组卷
|
11卷引用:四川省宜宾市2021届高三二模(文科)试题
四川省宜宾市2021届高三二模(文科)试题江西省临川第一中学暨临川一中实验学校2021届高三模拟考试数学(文)试题(已下线)专题06 空间图形的表面积和体积-2020-2021学年高一数学下学期期末专项复习(苏教版2019必修第二册)江西省吉安市第一中学2021-2022学年高二10月第一次段考数学(理)试题河北省廊坊市第一中学2021-2022学年高一上学期12月考试数学试题(已下线)7.7 空间几何体的外接球(精练)-【一隅三反】2022年高考数学一轮复习(新高考地区专用)河南省郑州市第一〇六高级中学2021-2022学年高三上学期期中数学(文)试题新疆乌鲁木齐外国语学校、第十二中学2021-2022学年高一下期中考试数学试题(已下线)专题17 球面几何(外接球、内切球和棱切球)-1(已下线)高一下期中真题精选(压轴60题专练)-【满分全攻略】2022-2023学年高一数学下学期核心考点+重难点讲练与测试(人教A版2019必修第二册)福建省宁德第一中学2024届高三上学期学科素养训练(二模)数学试题