2022·全国·模拟预测
1 . 在正三棱柱
中,
,
是侧棱
上一点,且
,则三棱锥
外接球的表面积为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/841570912ce996b985a9961001bfae51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9499f0e312799d87f5377f30565abc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc27121b923731da934338667acd1e6c.png)
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名校
解题方法
2 . 在三棱柱
中,
底面
,
,点P是棱
上的点,
,若截面
分这个棱柱为两部分,则这两部分的体积比为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0da60f7d50768d34bdc59759c4b0b66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7f5efdf2008c628d79958e8ed4a1883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bc9b42d16569ad69c38883534a0be16.png)
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2022-05-13更新
|
591次组卷
|
3卷引用:河南省多校联盟2022届高考终极押题(B卷)数学(文)试题
名校
解题方法
3 . 如图,在正方体
中,点F是棱
上的一个动点,平面
交棱
于点E,则下列正确说法的序号是___________ .
![](https://img.xkw.com/dksih/QBM/2022/5/9/2975700215357440/2976460194693120/STEM/9bff69cf-bf9a-4058-b628-46ffb165bbbb.png?resizew=152)
①存在点F使得
平面
;
②存在点F使得
平面
;
③对于任意的点F,都有
;
④对于任意的点F三棱锥
的体积均不变.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c241f900cb6ed341c137a3d71216a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/2022/5/9/2975700215357440/2976460194693120/STEM/9bff69cf-bf9a-4058-b628-46ffb165bbbb.png?resizew=152)
①存在点F使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb96d9ea39bf7974143973559058dbec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6069dc466eec75bbeb3d5c9b51cb3a70.png)
②存在点F使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/390c15e3a73978e982688bbc8db12fbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6069dc466eec75bbeb3d5c9b51cb3a70.png)
③对于任意的点F,都有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c672f693a7e75a7bae4936dcb1920430.png)
④对于任意的点F三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f97d99e8ae873d2dcaf0593a3287506c.png)
您最近一年使用:0次
2022-05-10更新
|
911次组卷
|
4卷引用:陕西省西安市周至县2022届高三下学期三模理科数学试题
陕西省西安市周至县2022届高三下学期三模理科数学试题黑龙江省佳木斯市第一中学2022届高三下学期高考押题卷理科数学试题(已下线)专题14 立体几何(文科)-备战2023年高考数学母题题源解密(全国通用)(已下线)专题31 直线、平面垂直的判定与性质-3
解题方法
4 . 已知点A,B,C,D均在表面积为
的球面上,且
,
,
是边长为3的等边三角形,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95345846d2dd4dfa042a9093c62a8b82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
您最近一年使用:0次
5 . 如图,在棱长为1的正方体
中,P,Q,R分别是棱AB,BC,
上的点,且满足
,以
为底面作一个直三棱柱,使其另一个底面的三个顶点都在正方体
的表面上,则这个直三棱柱的体积为______ .
![](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/4fdd3843c48945fc8945eb3046a1f1e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c28abb154f41e1ca9816c9c9c2433ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://img.xkw.com/dksih/QBM/2022/4/25/2966027155267584/2971613513859072/STEM/5cf566ac-89e8-47f5-8566-9ccfee023279.png?resizew=180)
您最近一年使用:0次
名校
解题方法
6 . 已知四面体ABCD的所有棱长都相等,其外接球的体积等于
,则下列结论正确的是___________ .(填序号)
①四面体ABCD的棱长均为2;
②四面体ABCD的体积等于
,
③异面直线AC与BD所成角为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefdcd39676298f214654051fc51ba92.png)
①四面体ABCD的棱长均为2;
②四面体ABCD的体积等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24c14ff9b66f21c05e52dc3c8908c2df.png)
③异面直线AC与BD所成角为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
您最近一年使用:0次
2022-04-26更新
|
313次组卷
|
2卷引用:山西省吕梁市交城县2022届高三核心模拟(下)文科数学(一)试题
7 . 已知四面体ABCD的所有棱长均为
,M,N分别为棱AD,BC的中点,F为棱AB上异于A,B的动点,有下列结论:
①线段MN的长度为1;
②存在点F,满足
平面FMN;
③四面体ABCD的外接球表面积为
;
④△
周长的最小值为
.
其中所有正确结论的编号为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
①线段MN的长度为1;
②存在点F,满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f30533da2e1d2a958dc906c37eba9d.png)
③四面体ABCD的外接球表面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14c055a02fba0827ffcaa92f73ce7720.png)
④△
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/412ef8edcf697ce9606cf82f58d695f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1f190b17530d81d927c358ac84757a4.png)
其中所有正确结论的编号为
您最近一年使用:0次
8 . 已知三棱锥
的顶点都在以
为直径的球M的球面上,
,球M的表面积为
,当三棱锥
的体积最大时,点A到平面
的距离为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b86f54d2e783884d045dcc6f383bf56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a14fe9905a5802f83a2ed472e146bbc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
您最近一年使用:0次
解题方法
9 . 已知正四面体ABCD的棱长为2,P为AC的中点,E为AB中点,M是DP的动点,N是平面ECD内的动点,则
的最小值是_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bb806883030a6fd2c6825c95b864421.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/5/b9d5fe24-3bc7-4f75-8a95-fc80cc11d544.png?resizew=195)
您最近一年使用:0次
2022-04-14更新
|
1110次组卷
|
3卷引用:安徽省宣城市2022届高三下学期第二次调研测试理科数学试题
解题方法
10 . 如图,在直三棱柱
中,
是边长为2的正三角形,
,M为
的中点,P为线段
上的动点(不包含端点),则下列说法正确的是_______ (填写序号)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/b087a148-6eac-4bcf-a3fa-2e2f1ce0ee07.png?resizew=148)
①
平面
②三棱锥
的体积的取值范围为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/550b474a46c225534a0a9732bc76606e.png)
③
与
为异面直线 ④存在点P,使得
与
垂直
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55a2310cbba5e050488cd9296eb195d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9399c9a2a31b0e3165aea2d6ccc4f7c9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/b087a148-6eac-4bcf-a3fa-2e2f1ce0ee07.png?resizew=148)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f36f074d1dc1054c679236ec70dcaf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3653ada76ba0c8afe9d57c8e7832c6ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790c0a17ee2d7181ee95da741694bd1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/550b474a46c225534a0a9732bc76606e.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
您最近一年使用:0次
2022-04-01更新
|
732次组卷
|
5卷引用:百师联盟2022届高三二轮复习联考(一)(全国卷)文科数学试题
百师联盟2022届高三二轮复习联考(一)(全国卷)文科数学试题(已下线)查补易混易错点06 立体几何-【查漏补缺】2022年高考数学(文)三轮冲刺过关广东省东莞市东莞外国语学校2021-2022学年高一下学期期中数学试题(已下线)专题15 立体几何(模拟练)-1(已下线)核心考点05简单几何体的表面积与体积-【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)