名校
解题方法
1 . 如图,一块边长为
的正方形铁片上有四块阴影部分,将这些阴影部分裁下来,然后用余下的四个全等的等腰三角形加工成一个正四棱锥形容器.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/8/bed23e59-b524-42f2-9484-fc2afc99fdca.png?resizew=411)
(1)请在答卷指定位置的空间直角坐标系中按比例画出该正四棱锥的直观图;
(不需要写步骤及作图过程)
(2)求该正四棱锥形容器的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e651babde701d43faadf589dd4e14c72.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/8/bed23e59-b524-42f2-9484-fc2afc99fdca.png?resizew=411)
(1)请在答卷指定位置的空间直角坐标系中按比例画出该正四棱锥的直观图;
(不需要写步骤及作图过程)
(2)求该正四棱锥形容器的体积.
您最近一年使用:0次
2021-08-05更新
|
476次组卷
|
4卷引用:广东省惠州市2020-2021学年高一下学期期末数学试题
广东省惠州市2020-2021学年高一下学期期末数学试题广东省深圳市高级中学高中园2022-2023学年高一下学期期中数学试题(已下线)第08讲 简单几何体的表面积和体积(核心考点讲与练)-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)(已下线)模块一 专题5 基本立体图形和直观图 讲
解题方法
2 . 如图,在正方体
中,
分别为棱
的中点.
的截面.(只需写出作图过程,不用证明)
(2)请求出截面分正方体上下两部分的体积之比.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1ae536809b1161fd4e83fdc7f42be96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/548d64146122e344b7d30bf0dbedb374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba446c8c4a5f93fa23dc21acd4cb1920.png)
(2)请求出截面分正方体上下两部分的体积之比.
您最近一年使用:0次
3 . 一木块如图所示,点
在平面
内,过点
将木块锯开:
![](https://img.xkw.com/dksih/QBM/2021/7/6/2758293041160192/2790280955371520/STEM/ad9397aa4ed148eeb803c4451963b334.png?resizew=227)
(1)使直线
和
平行于截面,在木块表面应该怎样画线(保留作图痕迹,简要说明).
(2)若
是
的重心,在条件(1)下求锯开的两个多面体的体积之比,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36957cc47e8b85809737f005345fd619.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/2021/7/6/2758293041160192/2790280955371520/STEM/ad9397aa4ed148eeb803c4451963b334.png?resizew=227)
(1)使直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95226c64f0afdaa10b95ec097a0720ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a392d05d3cfcbb438569b1ea9980dc2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e591af63f131146607d62231ae6183b4.png)
您最近一年使用:0次
名校
4 . 如图,正方体
的棱长为1,点
在棱
上,过
,
,
三点的正方体的截面
与直线
交于点
.
![](https://img.xkw.com/dksih/QBM/2021/4/17/2701872321519616/2702437407539200/STEM/8c8791a4759147a2946a0da12426de3c.png?resizew=291)
(1)找到点
的位置,作出截面
(保留作图痕迹),并说明理由;
(2)已知
,求
将正方体分割所成的上半部分的体积
与下半部分的体积
之比.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/2021/4/17/2701872321519616/2702437407539200/STEM/8c8791a4759147a2946a0da12426de3c.png?resizew=291)
(1)找到点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0b45ff172cc611ca501688d9dc0175b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4764374bd2fb78e59cd0b283637baeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63055a5d6916f99d07fede49120753f.png)
您最近一年使用:0次
2021-04-18更新
|
2268次组卷
|
7卷引用:广东省深圳市富源学校2020-2021学年高一下学期期中数学试题
广东省深圳市富源学校2020-2021学年高一下学期期中数学试题安徽省合肥一六八中学2020-2021学年高一下学期期中数学试题山东枣庄2021届高三数学二模试题(已下线)押新高考第19题 立体几何-备战2021年高考数学临考题号押题(新高考专用)(已下线)押第19题 立体几何-备战2021年高考数学(文)临考题号押题(全国卷2)(已下线)押第18题 立体几何-备战2021年高考数学(文)临考题号押题(全国卷1)1号卷·A10联盟2022届全国高考第一轮总复习试卷数学(文科)试题(十五)
解题方法
5 . 如图所示,在正方体
中,点
在棱
上,且
,点
、
、
分别是棱
、
、
的中点,
为线段
上一点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/13/50a39fd9-39d7-4c4c-83c4-ad632c0dbbc7.png?resizew=185)
(1)若平面
交平面
于直线
,求证:
;
(2)若直线
平面
,试作出平面
与正方体
各个面的交线,并写出作图步骤,保留作图痕迹;设平面
与棱
交于点
,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fbafedc202bd0d86c4dfdece9f8f4fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f01d1dd10776b00e9df008f03f2608c.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/87cdc08e1c4a04a18d5ecea03393e36d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/13/50a39fd9-39d7-4c4c-83c4-ad632c0dbbc7.png?resizew=185)
(1)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a447dc58e10adb7c8014071651e7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b54387f870ae37f7951b253665d64f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb275e0e9a23118c8f61da15d4e3c869.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/565133e91e3ace2b2187cfc6f1db5be6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a447dc58e10adb7c8014071651e7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbf62b9fe96ad0b0f58c8b3ba3075ab5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbf62b9fe96ad0b0f58c8b3ba3075ab5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a4a7ba7546acc68f9cff46f1c53557f.png)
您最近一年使用:0次
解题方法
6 . 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
|
730次组卷
|
5卷引用: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
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)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)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(已下线)专题15 立体几何(模拟练)-1
7 . 如图,在四棱锥
中,
,
平面
,
,
,
,
,
为
中点.
(1)证明:
//平面
;
(2)过点
作平行于平面
的截面,画出该截面,说明理由,并求夹在该截面与平面
之间的几何体的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99da52604d90b4772725a2632a39dbb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/105068b25f5a63af32f4082cfe08691e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56fdf217165748fafe938b64fa08179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74d415fc177602419318970258793c8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e2a44d05b1d387150c4b359e021ffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ec435aa1401dbce7863b531bf2f3e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/29/42c98de0-a962-4637-90ee-ffcff8fbd1dd.png?resizew=155)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
您最近一年使用:0次
名校
解题方法
8 . 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
|
476次组卷
|
5卷引用:广东省佛山市普通高中2022-2023学年高一下学期期末数学试题
9 . 如图,在三棱锥
中,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/20/510b755a-5812-4c7f-98b1-706bc12f7d26.png?resizew=196)
(1)画出二面角
的平面角,并求它的度数;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/785ba14914716ccd48f8545543a58807.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/20/510b755a-5812-4c7f-98b1-706bc12f7d26.png?resizew=196)
(1)画出二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7fe637f1537666932491637f9b3d3ee.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
您最近一年使用:0次