1 . 在三棱锥
中,
平面
,且
,
,
,当三棱锥
的体积最大时,此三棱锥的外接球的表面积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4357d5744046d4d44abb09e1ee35fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5dd496ee0c1170ef6dcc48266ee444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb2ccf062423ab6fb5b2dccec646930.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fffa3d9c32da53b0ea0c338012ea20c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4357d5744046d4d44abb09e1ee35fcb.png)
您最近一年使用:0次
2019-02-12更新
|
1275次组卷
|
2卷引用:【市级联考】广东省韶关市2019届高三1月调研考试数学理试题
18-19高二下·上海·阶段练习
名校
2 . 如图,已知正方体
的棱长为
,点
为线段
上一点,
是平面
上一点,则
的最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0424446817f60c18f8e4e3cc202ad99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/247e468f1a64c3c73d04f0270e993d5c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/9/7872ce1a-b168-46aa-97d7-a92533836fb6.png?resizew=166)
您最近一年使用:0次
2019-04-04更新
|
1179次组卷
|
6卷引用:上海市华东师范大学第二附属中学2018-2019学年高二3月月考数学试题
(已下线)上海市华东师范大学第二附属中学2018-2019学年高二3月月考数学试题(已下线)上海市华东师范大学第二附属中学2018-2019学年高二下学期3月月考数学试题(已下线)上海市华东师范大学第二附属中学2018-2019学年高二下学期3月检测数学试题上海市上海大学市北附属中学2018-2019学年高二下学期期中数学试题上海市复兴高级中学2015-2016学年高二下学期5月月考数学试题山西省运城市景胜中学2020-2021学年高二上学期9月月考数学试题
名校
3 . 如图所示,正方体ABCD﹣A1B1C1D1棱长为4,点
在棱
上,点
在棱
上,且
.在侧面
内以
为一个顶点作边长为1的正方形
,侧面
内动点
满足到平面
距离等于线段
长的
倍,则当点
运动时,三棱锥
的体积的最小值是
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/5b8bdfaf-a568-44bb-9324-0482e7a988d2.png?resizew=172)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cd8089bf8a278810573965bc1fb919b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b094e639c2b31dc54b1b3e6456e77843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41600c9ee19dcb98d0ff7e0a315129e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16dd27701a0a9849b58d39ae10623763.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb6101e45f8d7013bc3dc4197188c0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5a3fbe6dbf44f6332fd7340f1202cdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16dd27701a0a9849b58d39ae10623763.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf7b618c5571a392c3f5dfffecf52715.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca1d09859dfab140e55e3cc3e7d67d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e051d14fd6a787387995331f5e6d026.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09ef4dd09356dcbbcf2137bd4e9ebe0c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/5b8bdfaf-a568-44bb-9324-0482e7a988d2.png?resizew=172)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
4 . 边长为2的正三角形
中,
,
分别为
,
中点,将
沿
折起,使得
,则四棱锥
的体积为___________ ,其外接球的表面积为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c51c25b65a37b676ae3c3b71c29f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8e7cedc39297d66dbb177f2a1f6bee2.png)
您最近一年使用:0次
5 . 如图,三棱柱ABC–A1B1C1中,侧面AA1C1C⊥侧面ABB1A1,AC=AA1=
AB,∠AA1C1=60°,AB⊥AA1,H为棱CC1的中点,D为BB1的中点.
(1)求证:A1D⊥平面AB1H;
(2)若AB=
,求三棱柱ABC–A1B1C1的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e051d14fd6a787387995331f5e6d026.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/8/f9b24a08-9ac1-4a51-a231-65dd968043fd.png?resizew=160)
(1)求证:A1D⊥平面AB1H;
(2)若AB=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e051d14fd6a787387995331f5e6d026.png)
您最近一年使用:0次
2018-11-22更新
|
1480次组卷
|
6卷引用:【全国百强校】甘肃省西北师范大学附属中学2018届高三冲刺诊断考试数学(文)试题
【全国百强校】甘肃省西北师范大学附属中学2018届高三冲刺诊断考试数学(文)试题广东省湛江市遂溪县第一中学2017--2018学年高二第二学期第三次月考文科数学试题(已下线)2018年11月20日 《每日一题》人教必修2-平面与平面垂直的性质(已下线)卷04-备战2020年新高考数学自学检测黄金10卷-《2020年新高考政策解读与配套资源》(已下线)专题06 立体几何初步(难点)-2020-2021学年高一数学下学期期末专项复习(北师大版2019必修第二册)陕西省西安市大联考2022-2023学年高一下学期期中数学试题
名校
解题方法
6 . 菱形
边长为
,
,将
沿对角线
翻折使得二面角
的大小为
,已知
、
、
、
四点在同一球面上,则球的表面积等于__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6906f59d09ce31956d6f5ea2b23fc77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df6d51738ac1bc8b9530ea4a55745c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/282d4a8c3476b2b81e3fd73898e64539.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231b861d6d1f1d0b9f52b041cb40eb62.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
您最近一年使用:0次
2018-04-10更新
|
1931次组卷
|
7卷引用:湖南省(长郡中学、衡阳八中)、江西省(南昌二中)等十四校2018届高三第二次联考数学(文)试题
湖南省(长郡中学、衡阳八中)、江西省(南昌二中)等十四校2018届高三第二次联考数学(文)试题【全国百强校】河南省巩义市市直高中2018届高三下学期模拟考试数学(文)试题【全国校级联考】福建省罗源第一中学2018届高三5月校考数学(文)试题【校级联考】江西省红色七校2019届高三第一次联考数学(文)试题2020届江西省名师联盟高三入学调研考试数学(文)试题(已下线)专题06 立体几何(文)第二篇-备战2020高考数学黄金30题系列之压轴题(新课标版)(已下线)专题06 立体几何(理)第二篇-备战2020高考数学黄金30题系列之压轴题(新课标版)
解题方法
7 . 如图,在直四棱柱
中,底面
为平行四边形,
,
,
,
,点
在上底面
所在平面上,使得
,点
在下底面
所在平面上,使得
,若三棱锥
的外接球表面积为
,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/92535536bd3c2761724fd058427f95a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfd18d5cef6da6c30e7487dd4567a5ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcf7cdb0007d84cf53e4f2d0cbf28148.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32521af95c640c6831948a2ca2d4f329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/15/70fcc717-ab93-496b-860f-d1c0f1be7727.png?resizew=172)
您最近一年使用:0次
名校
解题方法
8 . 设三棱锥
的每个顶点都在球
的球面上,
是面积为
的等边三角形,
,
,且平面
平面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/96255708-36bb-4b7c-8821-0f3aa5185494.png?resizew=176)
(1)确定
的位置(需要说明理由),并证明:平面
平面
.
(2)与侧面
平行的平面
与棱
,
,
分别交于
,
,
,求四面体
的体积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53502463cc76201000e02df314e58769.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adbd3e8cf8325999cde03adf845d3dd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/96255708-36bb-4b7c-8821-0f3aa5185494.png?resizew=176)
(1)确定
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7392e9e2da5a0e9ecab0f79992656328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)与侧面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/c10f93679abcee21bacd92c3b1552a0e.png)
您最近一年使用:0次
2020-02-18更新
|
890次组卷
|
4卷引用:2020届吉林省通化市梅河口市第五中学高三上学期期末数学(文)试题
2020届吉林省通化市梅河口市第五中学高三上学期期末数学(文)试题2020届吉林省实验中学高三第一次检测考试数学(文)试题(已下线)专题04 立体几何-2020年高三数学(文)3-4月模拟试题汇编(已下线)文科数学-6月大数据精选模拟卷04(新课标Ⅲ卷)(满分冲刺篇)
20-21高一下·江苏南通·阶段练习
名校
解题方法
9 . 直四棱柱
的各个棱长均为
,
,点
是棱
的中点,以
为球心,
为半径作球面,点
是球面与下底面
的一个公共点,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd7a42341edbc0b01ab0769c4c02c3e3.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
A.存在点![]() ![]() ![]() |
B.直线![]() ![]() ![]() |
C.该球面与侧面![]() ![]() |
D.该球面与底面![]() ![]() |
您最近一年使用:0次
10 . 如图,网格纸上小正方形的边长为1,粗线或虚线面出的是某几何体的三视图,俯视图中的两条弧均为圆弧,则该几何体的体积为
![](https://img.xkw.com/dksih/QBM/2018/5/14/1945307464318976/1947371922186240/STEM/d90d2fbbc9144a5f8c342d09276d597e.png?resizew=190)
![](https://img.xkw.com/dksih/QBM/2018/5/14/1945307464318976/1947371922186240/STEM/d90d2fbbc9144a5f8c342d09276d597e.png?resizew=190)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2018-05-17更新
|
1642次组卷
|
4卷引用:【全国市级联考】安徽省宿州市2018届高三第三次教学质量检测数学理试题