名校
解题方法
1 . 如图所示,在正方体
中,过对角线
的一个平面交
于E,交
于F,给出下面几个命题:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/3e73408a-ef56-4ce3-992d-4ea5a27153f2.png?resizew=149)
①四边形
一定是平行四边形;
②四边形
有可能是正方形;
③平面
有可能垂直于平面
;
④设
与DC的延长线交于M,
与DA的延长线交于N,则M、N、B三点共线;
⑤四棱锥
的体积为定值.
以上命题中真命题的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/3e73408a-ef56-4ce3-992d-4ea5a27153f2.png?resizew=149)
①四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ef5ea43614d815c3abb27a42dfb101b.png)
②四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ef5ea43614d815c3abb27a42dfb101b.png)
③平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ef5ea43614d815c3abb27a42dfb101b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d1a1b7edecd3344707cf04ea3e86916.png)
④设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/408871c2b71ef88d6f556ce53cf73cc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15dc61d5de97b5a40be925b278ae494c.png)
⑤四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38cccd2f394207778ac6542bb656790c.png)
以上命题中真命题的个数为( )
A.2 | B.3 | C.4 | D.5 |
您最近一年使用:0次
2021-10-25更新
|
2324次组卷
|
9卷引用:北京十一学校2022届高三10月月考数学试题
北京十一学校2022届高三10月月考数学试题广东省广州市真光中学2022届高三上学期11月月考数学试题甘肃省民乐县第一中学2021-2022学年上学期高三第二次诊断(12月)考试数学(理)试题(已下线)考点16 空间向量与立体几何-2022年高考数学一轮复习小题多维练(新高考版)(已下线)考点35 立体几何中的综合问题-备战2022年高考数学典型试题解读与变式(已下线)专题23 立体几何中的压轴小题-1(已下线)专题07 立体几何小题常考全归类(精讲精练)-1人教B版(2019) 必修第四册 北京名校同步练习册 第十一章 立体几何初步 11.4 空间中的垂直关系 11.4.2 平面与平面垂直(二)(已下线)第一章 点线面位置关系 专题四 共线问题 微点2 立体几何共线问题的解法综合训练【基础版】
名校
解题方法
2 . 已知正方体
内切球的表面积为
,
是空间中任意一点:
①若点
在线段
上运动,则始终有
;
②若
是棱
中点,则直线
与
是相交直线;
③若点
在线段
上运动,三棱锥
体积为定值;
④
为
中点,过点
,且与平面
平行的正方体的截面面积为
;
以上命题为真命题的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
①若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/763be97fe1e030b5509bda231a546001.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
③若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a80afb14665ad9cb3587c5364980e30.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/923189afc198d153c79059a827f63c87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/839c7616cd0d90265f4b2c9c021254fe.png)
以上命题为真命题的个数为( )
A.2 | B.3 | C.4 | D.5 |
您最近一年使用:0次
3 . 已知长方体
中,
,点
在线段
上,
,平面
过线段
的中点以及点
,若平面
截长方体所得截面为平行四边形,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26ad5e1c59b50ba1a2d66b157d6f7d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/367a7c073f5ecf51126971c372d5dd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0b9dbab385fc59c3b417552f2125c64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
4 . 在棱长为2的正方体
中,点
是对角线
上的点(点
与
不重合),有以下四个结论:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/40977cd8-21de-4881-9915-655c8bef89e3.png?resizew=166)
①存在点
,使得平面
平面
;
②存在点
,使得
平面
;
③若
的周长为L,则L的最小值为
;
④若
的面积为
,则
.
则正确的结论为( )
![](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/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8c3246cc6148083e6f8f38d1aa2b318.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/40977cd8-21de-4881-9915-655c8bef89e3.png?resizew=166)
①存在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dba49eb8ddd4dd38c1f994ccec93430e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a935b7d21a103a264b6e96ecf82dbe4a.png)
②存在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ba8f7af0e091e082100c3cd7f8c487f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4508dc6d9c91157836be679c0543cac.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce447afe4b0bb57a844b2c103b55fc71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03c210bc9dbae0c5d0890c205eb571d8.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce447afe4b0bb57a844b2c103b55fc71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42910d271417cc2435d0affa6c85afd5.png)
则正确的结论为( )
A.①③ | B.①②③ | C.①②④ | D.②④ |
您最近一年使用:0次
2021-06-03更新
|
2143次组卷
|
8卷引用:安徽省合肥市第八中学2021届高三下学期高考模拟最后一卷理科数学试题
安徽省合肥市第八中学2021届高三下学期高考模拟最后一卷理科数学试题(已下线)专题10 立体几何-备战2022年高考数学(文)母题题源解密(全国乙卷)(已下线)热点08 立体几何-2022年高考数学【热点·重点·难点】专练(新高考专用)(已下线)专题19 立体几何综合小题必刷100题-【千题百练】2022年新高考数学高频考点+题型专项千题百练(新高考适用)(已下线)专题23 立体几何中的压轴小题-1吉林省实验中学2021-2022学年高三下学期最后一次模拟考试数学(理)试题(已下线)专题18 空间几何题综合问题(体积、面积、角度、距离、轨迹等)(选填题)-2(已下线)8.6.3平面与平面垂直 (第2课时) -【上好课】(人教A版2019必修第二册)
5 . 如图,在正四棱锥
中,
,点
,
分别是
,
上靠近点
的三等分点,点
,
分别是
,
的中点,
,
分别在
,
上,且
,
,若在平面
内存在一点
,使得
平面
,
成立,则
( )
![](https://img.xkw.com/dksih/QBM/2021/5/18/2723895559733248/2723952361947136/STEM/22b0ef1616ea442cb04bdbb93d70e027.png?resizew=180)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91708c4508371f08556e76e31c7cb9ea.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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.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/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8bc96362590aef2a371444a86866d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea88b6a55b0b78954bed09a05da4038a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07b415e29be8abac18f80ac53f6b2027.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0ca522400972af6fbdc7d5d5d28567c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6798f3d40367c8cf62c12bec8c680899.png)
![](https://img.xkw.com/dksih/QBM/2021/5/18/2723895559733248/2723952361947136/STEM/22b0ef1616ea442cb04bdbb93d70e027.png?resizew=180)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
6 . 如图,在棱长为1的正方体
中,P为正方形
内(包括边界)的一动点,E,F分别为棱
的中点,若直线
与平面
无公共点,则线段
的长度范围是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/3ebaaf63-5c2b-4fdd-a274-e3b8e2b197a3.png?resizew=169)
![](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/374fe9986ebbc986fc422e514ab93a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c798204bbe306b3efd5bc9eae594c171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b1f68454096da710903e9693c7f2015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c798204bbe306b3efd5bc9eae594c171.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/3ebaaf63-5c2b-4fdd-a274-e3b8e2b197a3.png?resizew=169)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-05-12更新
|
1999次组卷
|
5卷引用:四川省达州市2021 届高三二模数学(理)试题
四川省达州市2021 届高三二模数学(理)试题吉林省长春市实验中学2020-2021学年高一下学期期末数学试题江西省赣州市赣县第三中学2021-2022学年高二12月月考数学(理)试题浙江省台州市?海协作体2022-2023学年高一下学期期中联考数学试题(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8 空间范围与最值问题综合训练
7 . 已知正方体
的棱长为2,
,
分别是棱
,
的中点,点
在四边形
内(包括边界)运动,则下列说法不正确的是( )
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
A.若![]() ![]() ![]() ![]() |
B.若![]() ![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
2021-03-24更新
|
1204次组卷
|
5卷引用:2021年浙江省新高考测评卷数学(第二模拟)
2021年浙江省新高考测评卷数学(第二模拟)(已下线)押第10题 立体几何-备战2021年高考数学(理)临考题号押题(全国卷2)(已下线)押第10题 立体几何-备战2021年高考数学(文)临考题号押题(全国卷2)江西省南昌市八一中学、洪都中学等七校2020-2021学年高二下学期期中联考数学(理)试题上海市向明中学2022-2023学年高二上学期10月月考数学试题
名校
8 . 在棱长为
的正方体
中,点
、
分别是棱
、
的中点,
是上底面
内一点,若
平面
,则线段
长度的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.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/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.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/12d8677ae5ca7acf874d93789425d172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f84f169e50dc59d4f7a8e1e36f5c847.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-01-28更新
|
1572次组卷
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6卷引用:陕西省宝鸡市渭滨区2020-2021学年高一上学期期末数学试题
陕西省宝鸡市渭滨区2020-2021学年高一上学期期末数学试题(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)(已下线)高一数学下学期期末精选50题(压轴版)-2021-2022学年高一数学考试满分全攻略(人教A版2019必修第二册)2023年3月河北省普通高中学业水平合格性考试模拟(九)数学试题重庆市万州第二高级中学2023届高三下学期3月月考数学试题(已下线)专题04 立体几何初步-期期末真题分类汇编(人教A版2019必修第二册)
9 . 如图所示,在直角梯形BCEF中,
,A,D分别是BF,CE上的点,
,且
(如图①)将四边形ADEF沿AD折起,连接BE,BF,CE(如图②),有折起的过程中,下列说法中错误的个数是( )
![](https://img.xkw.com/dksih/QBM/2020/11/3/2585106731393024/2585156922671104/STEM/7e57f735-cff3-49c9-bae0-b91647ccb996.png?resizew=383)
①
平面BEF;②B,C,E,F四点不可能共面;③若
,则平面
平面ABCD;④平面BCE与平面BEF可能垂直.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edb18f3937480ab5ad6cf0d65a357c75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5f2275cfc3cc50b92b16288db72cfe0.png)
![](https://img.xkw.com/dksih/QBM/2020/11/3/2585106731393024/2585156922671104/STEM/7e57f735-cff3-49c9-bae0-b91647ccb996.png?resizew=383)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f81fa367ec317fe2a30142e1c30cce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c1be2a5bfe8bab50cb68fe52d0f92ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9367449a5847eade07e69f4feddcb027.png)
A.0 | B.1 | C.2 | D.3 |
您最近一年使用:0次
2020-11-03更新
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381次组卷
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3卷引用:陕西省西安中学2021届高三高考数学(理)模拟试题(三)
名校
10 . 体积为216的正方体
中,点M是线段
的中点,点N在线段
上,
,则正方体
被平面AMN所截得的截面面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fbafedc202bd0d86c4dfdece9f8f4fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9948a4eeae82dd50df79cf3c746adf31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-02-01更新
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1510次组卷
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3卷引用:8.5空间直线、平面的平行C卷