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1 . 在棱长均为2的正三棱柱
中,
为
的中点,过
的截面与棱
分别交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/23/45b9602e-32ec-4698-aaff-da2d5cfc2301.png?resizew=166)
(1)若
为
的中点,连接
,求三棱锥
的体积;
(2)若四棱锥
的体积为
,求直线
与平面
所成角的正弦值;
(3)设截面
的面积为
面积为
面积为
,当点
在棱
上变动时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ef4495309b23e5218be6f611d04c38e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cf33d73483c93f24cc6a1d76ef22ca6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/23/45b9602e-32ec-4698-aaff-da2d5cfc2301.png?resizew=166)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce1b066f8869d0ff4513f7a99745125.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d87caa1982060ae45afd82830748372.png)
(2)若四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd14590987d7987a02d856d427a2da44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
(3)设截面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbad16d8800f6d55bd66bd64b1370e4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e5f14926a9f1878219e8e07632652f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d883feed6b35fac0a7745b0ca65d0c91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8010362247509d238c552c670a3429b3.png)
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解题方法
2 . 球面三角学是球面几何学的一部分,主要研究球面多边形(特别是三角形)的角、边、面积等问题,其在航海、航空、卫星定位等方面都有广泛的应用.定义:球的直径的两个端点称为球的一对对径点;过球心的平面与球面的交线称为该球的大圆;对于球面上不在同一个大圆上的点
,
,
,过任意两点的大圆上的劣弧
,
,
所组成的图形称为球面
,记其面积为
.易知:球的任意两个大圆均可交于一对对径点,如图1的
和
;若球面上
,
,
的对径点分别为
,
,
,则球面
与球面
全等.如图2,已知球
的半径为
,圆弧
和
所在平面交成的锐二面角
的大小为
,圆弧
和
所在平面、圆弧
和
所在平面交成的锐二面角的大小分别为
,
.记
.
![](https://img.xkw.com/dksih/QBM/2022/6/18/3003864495038464/3005607105249280/STEM/19bb80d1a89a48fe99515b4e88cb5894.png?resizew=426)
(1)用
表示![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75e0d68d07743567ceddce8be857d082.png)
__________ .
(2)用
表示![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a3a342fb5b1a475ed060e482b5df011.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed41d321f4c0717ac5b443aad942d9a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3761d19de9331c86f313fb92cea27d2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d013031cae9acab04f40369d49437e9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ee6e1d480ece7117e1f87ebf4bbeea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667349d99185bb045030b733352ff7fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a19c1bcb8431ae315ecd29c6478d3eff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e712e6bcf935c4b58fcbd75fc7a38622.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed41d321f4c0717ac5b443aad942d9a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3761d19de9331c86f313fb92cea27d2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82f95817a8ecb0cdea4e20bfd9911ad1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c466e74381062eef21a0145277e5e45.png)
![](https://img.xkw.com/dksih/QBM/2022/6/18/3003864495038464/3005607105249280/STEM/19bb80d1a89a48fe99515b4e88cb5894.png?resizew=426)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/325a5be295a97a211449b629ddb563d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75e0d68d07743567ceddce8be857d082.png)
(2)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0238cd62a4b1b8f3bbad83953bb60d3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a3a342fb5b1a475ed060e482b5df011.png)
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解题方法
3 . 已知一个正三棱锥的底面边长为2,高为
,则该正三棱锥的全面积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
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4 . 如图,棱长为1的正方体
中,
为线段
上的动点,则下列结论中正确的个数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/bfd7656f-abfd-4335-bd86-7f8047b859a9.png?resizew=172)
①平面
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36118a9e86f87ae75f554f8a3fcdb39d.png)
②
的最大值为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ff7caec4fdd8fb54a3ffbff9692414.png)
③
的最小值为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a2679dd29db749b3bc8a407793a0828.png)
④
与平面
所成角正弦值的取值范围是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5f911cf6124dc2521e02b114bb6c9e1.png)
⑤三棱锥
外接球体积为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/998b456c6884c6f5fc8cd4c73c7f07f1.png)
![](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/e26d9636ad77369535852c6e4493446a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/bfd7656f-abfd-4335-bd86-7f8047b859a9.png?resizew=172)
①平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbc3141b0ee5994a18e725bbd8a79d69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36118a9e86f87ae75f554f8a3fcdb39d.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc6913da03b6e87d163d17c1dc34295c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ff7caec4fdd8fb54a3ffbff9692414.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2814a0d93a9cafb77e63a82cd9b67a48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a2679dd29db749b3bc8a407793a0828.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c407eeb34204a1df967b8fbe481cb04d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e6a51a168f6a3c308fcfcede6406aa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5f911cf6124dc2521e02b114bb6c9e1.png)
⑤三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3242f7e6a180150c11b2af1f216cf9a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/998b456c6884c6f5fc8cd4c73c7f07f1.png)
A.2 | B.3 | C.4 | D.5 |
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5 . 已知三棱锥
中,侧棱和底面边长均为6,H,G分别是AD,CD的中点,E,F分别是边AB,BC上的点,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/18/60bfee69-5fa6-417c-a506-aa0e6e56a485.png?resizew=173)
(1)求证:E,F,G,H四点共面;
(2)设直线EH与FG相交于一点P,证明:点P一定在直线BD上;
(3)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65817cfd7cbcea8e49033f93cb8e8cfe.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/18/60bfee69-5fa6-417c-a506-aa0e6e56a485.png?resizew=173)
(1)求证:E,F,G,H四点共面;
(2)设直线EH与FG相交于一点P,证明:点P一定在直线BD上;
(3)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
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6 . 《双行星》(图1)是荷兰著名版画家埃舍尔1949年的木刻作品,该作品清晰展示了其试图结合不同世界的设想,基本结构是两个相同的正四面体相互交叉,为了便于观看,埃舍尔用黄白双色进行区分.可以看到,拥有高度文明的黄色的星球正在上演着人类的戏剧,规则的建筑和寸草不生的地表,处在史前时代的白色的星球,怪石嶙峋,恐龙和原始植物相依.通过这种对比埃舍尔似乎提出了一个警告,高度文明或许会消除了一切自然的痕迹.——《在埃舍尔的时空旅行》将《双行星》抽象为图2的组合体,若两个正四面体棱长均为2,且相交处均为棱中点,求这个组合体体积___________ .两个正四面体相交,公共部分形成的几何体表面积是___________ .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/16/1fa9fd3f-7ee2-4f83-9688-d72179b7e4b5.png?resizew=337)
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解题方法
7 . 如图,直四棱柱中
中,
,
,
,
,设M为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/16/e4705a4b-f3e7-4f74-998f-b43a2156ceb1.png?resizew=184)
(1)求四棱柱
的表面积;
(2)求证:
面
;
(3)连接
,记
三棱锥的体积为
,四棱柱
的体积为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1aa1e2fb67d9bdb5466c49ea298b28c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d927585a17c2e98ef7d5a9589a26ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/16/e4705a4b-f3e7-4f74-998f-b43a2156ceb1.png?resizew=184)
(1)求四棱柱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8355349fbe4f1ff9350e411a621b4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53bdef2e7a7929ad6190302ab44c46c0.png)
(3)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c997c508ad63f767b7f6cdcbcf98d42e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4764374bd2fb78e59cd0b283637baeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63055a5d6916f99d07fede49120753f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f737b04ce09bc7e1ed86dc9b3c85203b.png)
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解题方法
8 . 如图所示,记几何体W是棱长为1的正方体
割去两个三棱锥
,
后剩余的几何体.给出下列四个结论:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/93f65bb9-168b-4a27-bd42-dcaf02a0d278.png?resizew=190)
①几何体W的体积为
;
②几何体W的表面积为
;
③几何体W的顶点均在某个球面上,则该球的半径为
;
④若几何体W被与平面
平行的平面
所截的截面多边形的每条边长都相等,则平面
与平面
的距离为
.
其中所有正确结论的序号是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6189a4d33d37927684c7a68f32794373.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441c7b2e7622f16515e31bd6a1260b07.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/93f65bb9-168b-4a27-bd42-dcaf02a0d278.png?resizew=190)
①几何体W的体积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
②几何体W的表面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab46ea0cba2d06283fae3d864a2329e0.png)
③几何体W的顶点均在某个球面上,则该球的半径为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
④若几何体W被与平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c34e01955f8c8fe2f0041b35d8d602a7.png)
其中所有正确结论的序号是
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解题方法
9 . 已知某正六棱台的上、下底面边长为1和3,高为1,则其侧面积为( )
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-06-13更新
|
733次组卷
|
5卷引用:北京师范大学附属实验中学2021-2022学年高一下学期“线上擂台赛”数学试题
北京师范大学附属实验中学2021-2022学年高一下学期“线上擂台赛”数学试题(已下线)第06练 基本立体图形及其表面积与体积-2022年【暑假分层作业】高一数学(苏教版2019必修第二册)(已下线)8.3.1棱柱、棱锥、棱台的表面积和体积(精讲)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)(已下线)8.3.1 棱柱、棱锥、棱台的表面积和体积(精讲)-【题型分类归纳】2022-2023学年高一数学同步讲与练(人教A版2019必修第二册)(已下线)13.3.1 空间图形的表面积
10 . 下列说法正确的是( )
A.分别将矩形以相邻两边为轴旋转一周所形成的的两个圆柱体积必相同 |
B.分别将矩形以相邻两边为轴旋转一周所形成的的两个圆柱侧面积必相同 |
C.分别将直角三角形以两直角边为轴旋转一周所形成的的两个圆锥体积必相同 |
D.分别将直角三角形以两直角边为轴旋转一周所形成的的两个圆锥侧面积必相同 |
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