在棱长为4的正方体
中,点
是棱
的中点,过点
作与截面
平行的截面,则所得截面的面积为____________ .
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9275cb08430f635054519c543b72303f.png)
20-21高一下·安徽安庆·期末 查看更多[8]
安徽省安庆市2020-2021学年高一下学期期末数学试题(已下线)8.5 空间直线、平面的平行(精练)-2021-2022学年高一数学一隅三反系列(人教A版2019必修第二册)(已下线)专题22 立体几何中的截面问题-【重难点突破】2021-2022学年高一数学常考题专练(人教A版2019必修第二册)(已下线)8.5.3平面与平面平行(练案)-2021-2022学年高一数学同步备课 (人教A版2019 必修第二册)(已下线)专题8-2 立体几何中的截面及其归类-2福建省莆田市第五中学2023届高三上学期12月月考数学试题(已下线)第30讲 平面与平面平行(已下线)第二章 立体几何中的计算 专题五 空间几何体截面问题 微点1 空间几何体截面问题(一)【基础版】
更新时间:2021-08-03 00:50:46
|
相似题推荐
填空题-单空题
|
适中
(0.65)
【推荐1】如图所示的正方体中,
分别是所在棱的中点,则这四个点共面的图形是________ (把正确图形的序号都填上).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/15/0eae3676-61d5-45ca-a5bf-068cfb010847.png?resizew=200)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/15/922be38c-63cd-4293-a8a4-13e49dc20ff5.png?resizew=200)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/15/f327d28e-ee57-40ef-9b9d-e2a2506d98de.png?resizew=200)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/376c5c180b743c655f2af84b11ac9a4d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/15/0eae3676-61d5-45ca-a5bf-068cfb010847.png?resizew=200)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/15/922be38c-63cd-4293-a8a4-13e49dc20ff5.png?resizew=200)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/15/f327d28e-ee57-40ef-9b9d-e2a2506d98de.png?resizew=200)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/15/8241b8d4-2efe-4509-b74d-00f784a778f4.png?resizew=200)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
名校
【推荐2】已知正方体
的棱长为
,点
分别为棱
的中点,则下列结论中正确的序号是___________ .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/4966a260-bdac-42e0-aced-62e4e0dd6e3c.png?resizew=171)
①过
三点作正方体的截面,所得截面为正六边形;
②![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
平面
;
③
平面
;
④四面体
的体积等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b199a99e53d67ff4abf233930961a29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/029ed096f249bfec4420d746e9a3d292.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/4966a260-bdac-42e0-aced-62e4e0dd6e3c.png?resizew=171)
①过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b199a99e53d67ff4abf233930961a29.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4645450a006f2c20087486d0833afbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13cfdc6224181d44e63aab43ddaf07ef.png)
④四面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68ac02c2f91cadb1e328bc6ab9b9c491.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aec67c4c83e4955f36ec34afb19df83.png)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
解题方法
【推荐1】在如图所示的试验装置中,两个正方形框架ABCD,ABEF的边长都是2,且所在的平面互相垂直.可以滚动的弹珠M,N分别从A,F出发沿对角线AC,FB匀速移动,已知弹珠N的速度是弹珠M的速度的3倍,且当弹珠N移动到B处时试验终止,则弹珠M,N间的最短距离是__________ .
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/15/4eb6ef0d-9249-4047-ad2c-be7b1ca01a5a.png?resizew=183)
您最近一年使用:0次
填空题-双空题
|
适中
(0.65)
名校
【推荐2】正方体
的棱长为
,点
在棱
上运动,过
三点作正方体的截面,若
为棱
的中点,则截面面积为_________ ,若截面把正方体分成体积之比为
的两部分,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b47623287a1cdf633e8dad58b1f0720.png)
_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88ee443bc49c6ecba70281c6b0984219.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbe103f073845122c66f22dcb14b711f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b47623287a1cdf633e8dad58b1f0720.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/1ac1a838-a96a-4f8a-8bbd-972bafaa2b36.png?resizew=136)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
解题方法
【推荐1】在长方体
中,
,分别在对角线
上取点
,使得直线
平面
,则线段
长的最小值为____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3de266886db89ca563b1d68f6327e810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f80007f24e1f975ff9664fb147a66ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcf19a7f0dd0cdf59516ae585025110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e53b212640dadf751ef7f65a78a209.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
名校
解题方法
【推荐2】如图,在棱长为3的正方体
中,
在线段
上,且
是侧面
上一点,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
平面
,则线段
的最大值为__________ .
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff737dcada9c3e9a71bff6f0f2deef5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b724168afaee2ecddf97257180be18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7935fe3125f247b7bea4f065ce9ad985.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次