名校
解题方法
1 . 如图,正方体
的棱长为
分别为棱
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/478dce1e-1612-4f04-96c4-020d8b8e0da0.png?resizew=161)
(1)请在正方体的表面完整作出过点
的截面,并写出作图过程;(不用证明)
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b684d2e78a0eb1b406913f2730e1d226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5307e04a84a0621e4d5bd2aaa1980ef.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/478dce1e-1612-4f04-96c4-020d8b8e0da0.png?resizew=161)
(1)请在正方体的表面完整作出过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6f5c5097e8b1f6c46b744ea1630d41e.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/378daab67e7e1d1542e6e25f0f259185.png)
您最近一年使用:0次
2024-03-07更新
|
497次组卷
|
4卷引用:甘肃省部分学校2024届高三下学期2月开学考试数学试题
甘肃省部分学校2024届高三下学期2月开学考试数学试题河南省九师联盟2024届高三上学期2月开学考试数学试卷内蒙古自治区赤峰市松山外国语学校2024届高三下学期开学考试数学(理)试题(已下线)重难点6-2 空间几何体的交线与截面问题(8题型+满分技巧+限时检测)
解题方法
2 . 如图,在直四棱柱
中,底面是边长为2的菱形,
,O分别为上、下底的中心,
,点
是
的中点.
平面
;
(2)若三棱锥
的体积为
,求棱柱的侧面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7dbf31dfd36aa456a63bafea8bc1985.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6afb5c6e2d0469bfdec81be42542bdc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc852e3603a21a93affc70812b2f2622.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
(2)若三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7260881c6fb7470a33cc809c34df40ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
您最近一年使用:0次
2023-08-12更新
|
518次组卷
|
4卷引用:辽宁省抚顺德才高级中学2023-2024学年高二上学期期初考试数学(北大班)试题
辽宁省抚顺德才高级中学2023-2024学年高二上学期期初考试数学(北大班)试题辽宁省鞍山市台安县高级中学2022-2023学年高一下学期期末数学试题山东省潍坊市高密市第三中学2023-2024学年高二上学期8月月考数学试题(已下线)专题08立体几何期末14种常考题型归类(1)-期末真题分类汇编(人教B版2019必修第四册)
名校
解题方法
3 . 如图,在长方体木块
中,
,
,
.棱
上有一动点
.
,过点
画一个与棱
平行的平面
,使得
与此长方体的表面的交线围成一个正方形
(其中交线
在平面
内).在图中画出这个正方形
(不必说出理由),并求平面
将长方体分成的两部分的体积比;
(2)若平面
交棱
于
,求四边形
的周长的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7788830ed1cb3b9c5988f70f43595f2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55a2310cbba5e050488cd9296eb195d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51f686d7497de2e660b17dedea238907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
(2)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db3ef97d64e58d311019b70fe5e2cc0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ecff976dee04e6117ca6ebc8b68ffb7.png)
您最近一年使用:0次
2023-07-08更新
|
436次组卷
|
5卷引用:广东省东莞市东莞市东华高级中学2023-2024学年高二上学期开学考试数学试题
解题方法
4 . 如图,在棱长为6的正方体
中,点E是
的中点,
与
交于点O.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/2/624a0bd8-6a6c-413b-a782-30e1d01b5495.png?resizew=208)
(1)求证:
平面
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/554b3b4c5ce7aca81becc07ed4903736.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/2/624a0bd8-6a6c-413b-a782-30e1d01b5495.png?resizew=208)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc3f049152c43dd29b12d0a60aa79f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65277734669566578cbb7d690bb200fb.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42020cfacd62b300cad053981bab9e0b.png)
您最近一年使用:0次
2022-07-09更新
|
180次组卷
|
2卷引用:四川省成都东部新区养马高级中学2023-2024学年高二上学期开学考试数学试题
21-22高一·湖南·课后作业
5 . 查找并阅读关于蜂房结构的资料,建立数学模型说明蜂房正面采用正六边形面,底端是封闭的六角棱锥体的底,由三个相同的菱形组成(菱形的锐角为
,钝角为
)的原因.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7192acc5f8fbc96ffeebac6a7889c59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cadf7305c76ce730784b007d868d1f7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/3/189df1ea-86a4-4932-aa52-6e480fa888fa.png?resizew=347)
您最近一年使用:0次
解题方法
6 . 如图,在棱长为4的正方体
中,设E是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/e0cf4309-87e9-45d4-9c67-9cea9375adc1.png?resizew=157)
(1)求证:
平面
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/e0cf4309-87e9-45d4-9c67-9cea9375adc1.png?resizew=157)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8197bf06d017950c85c3ba6a291c095e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1c1acd7da8817385417e1dff25bfe25.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e63fa0d9702ebcae364f0d06db855a29.png)
您最近一年使用:0次
名校
7 . 如图,已知直三棱柱
中,
,
,
,
,
,
分别为棱
,
的中点,
为线段
的中点
,
,
三点的平面截该棱柱所得的多边形,并求出该多边形的周长;
(2)该截面分三棱柱成两部分,求其中较小那部分几何体的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad1a56baf43ffdf67bc8460856e31fec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b40d0d2f3cdd8981bb792ad87efb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.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/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.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/895dc3dc3a6606ff487a4c4863e18509.png)
(2)该截面分三棱柱成两部分,求其中较小那部分几何体的体积.
您最近一年使用:0次
2021-08-30更新
|
610次组卷
|
5卷引用:四川省德阳中学校2022-2023学年高二上学期入学考试数学试题
四川省德阳中学校2022-2023学年高二上学期入学考试数学试题安徽省合肥市第八中学2020-2021学年高一下学期期中数学试题(已下线)8.4空间点、直线、平面之间的位置关系C卷安徽省滁州市定远县育才学校2021-2022学年高一下学期5月月考数学试题(已下线)第26讲 平面
名校
解题方法
8 . 如图所示,在正三棱柱
中,
为
的中点,
是
上的一点,且由
沿棱柱侧面经过棱
到
的最短路程为
.设这条最短路线与
的交点为
求:
![](https://img.xkw.com/dksih/QBM/2021/6/17/2745006483857408/2782254416994304/STEM/3b48675b1fb849fd8b0b8aeb89340b00.png?resizew=134)
(1)
的长;
(2)求二面角
的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0fbe160d18676bcf60557abbf383dcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea6ad68f10f098feda5d9b94636bf752.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://img.xkw.com/dksih/QBM/2021/6/17/2745006483857408/2782254416994304/STEM/3b48675b1fb849fd8b0b8aeb89340b00.png?resizew=134)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dafebaaf13781120dc57c277d0267c0.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e62555c64bf39344c114f8e08bca6ae.png)
您最近一年使用:0次
名校
解题方法
9 . 如图,直三棱柱
中,
,
且
,
分别是
,
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/17bbe2fd-efb1-4a3f-a68e-f39493846ddd.png?resizew=154)
(1)求证:
平面
;
(2)求证:
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c646c683fbe522edb7ea54fd3ad873d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d56e653a138322672e5c8b5d6db958c.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/17bbe2fd-efb1-4a3f-a68e-f39493846ddd.png?resizew=154)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ee0a8c5d84aaf345a334db2baf20fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b2213b575a7cfaffcdf91885005c7d.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662698361c6b3ddaf0c28a3c87be53e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b2213b575a7cfaffcdf91885005c7d.png)
您最近一年使用:0次
2021-07-29更新
|
419次组卷
|
2卷引用:四川省广安市武胜烈面中学校2021-2022学年高二上学期数学(理)入学考试试题
名校
解题方法
10 . (1)一个正方体纸盒展开后如图所示,在原正方体纸盒中有如下结论:
①
;②
;③
与
是异面直线;④
;
以上四个结论中,正确结论的序号是哪些?(无需说明理由,只要写出正确结论的序号即可)
(2)如图,四面体
中,
,且直线
与
成60°角,点M、N分别是
、
的中点,求异面直线
和
所成角的大小.
![](https://img.xkw.com/dksih/QBM/2020/10/11/2568884001316864/2568943962750976/STEM/2289db9f51e34fafb5bc98a280de977b.png?resizew=180)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a0b29cc24e75be59cbaa5c60a4b4c6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5a895c63ec5b8f15565df016f5b3f30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c06bddec1e40ba10f93d3c3a13b74cf0.png)
以上四个结论中,正确结论的序号是哪些?(无需说明理由,只要写出正确结论的序号即可)
(2)如图,四面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c220eadc312101e2fb89dfe920f7b30d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://img.xkw.com/dksih/QBM/2020/10/11/2568884001316864/2568943962750976/STEM/e00e09603f86484bb74fa449bc038e06.png?resizew=200)
您最近一年使用:0次
2020-10-11更新
|
585次组卷
|
4卷引用:上海市行知中学2021届高三上学期开学考试数学试题
上海市行知中学2021届高三上学期开学考试数学试题(已下线)8.3 空间点、直线、平面之间的位置关系-2020-2021高中数学新教材配套提升训练(人教A版必修第二册)(已下线)课时40 空间直线与直线的位置关系-2022年高考数学一轮复习小题多维练(上海专用)沪教版(2020) 必修第三册 新课改一课一练 阶段检测2