名校
解题方法
1 . 已知正方体
棱长为2,则直线
到平面
的距离为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb04914c4e8fb3483da44c67fe1809f.png)
您最近一年使用:0次
名校
2 . 已知四棱锥
中,底面四边形
是边长为
的正方形,
,设
.记直线
与平面
所成角为
,二面角
的大小为
.给出下列四个结论:
①若
,则
;
②若
,则
;
③
;
④
.
其中所有正确结论的序号是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2951b9f77413d5f062acb300b09de1f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7314a3d56862aaff48a44e455cded5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](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/bf29d07c3751c41ab3503065a5a5052e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/916eb07836b3dff9fffea747bb46c906.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e34f42b3be15518c29e3689c9fe6d6d.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e34f42b3be15518c29e3689c9fe6d6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/916eb07836b3dff9fffea747bb46c906.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bc986486f7c46f7281cb58094b75ea6.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16df7b7f3a435296811e633c965bb86d.png)
其中所有正确结论的序号是
您最近一年使用:0次
解题方法
3 . 如图,在正方形
中,E,F分别为BC,CD的中点,H为EF的中点,分别沿AE,EF,FA将
,
,
折起,使B、C、D重合于点O,构成四面体
,连接AH,则在四面体
中,下列结论正确的是______ .(写出所有正确结论的序号)
![](https://img.xkw.com/dksih/QBM/2022/10/26/3095802912071680/3098102632513536/STEM/62be564bfacd4e71b988daaf35d027a3.png?resizew=454)
①
平面
;
②
平面
;
③
;
④
;
⑤平面
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e5a933a2a0ff3a28009cc989293ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441dec590b47adc3678a291a3ec89a4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bd7177a1af632169e5f4740c1b50d6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bd7177a1af632169e5f4740c1b50d6b.png)
![](https://img.xkw.com/dksih/QBM/2022/10/26/3095802912071680/3098102632513536/STEM/62be564bfacd4e71b988daaf35d027a3.png?resizew=454)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce03b310edce42191f9fa75a1c909ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2935a591c968df92a8cdd2bf09d96452.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5365b846c8d6eb432002a4ee32cb9137.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2935a591c968df92a8cdd2bf09d96452.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c602c1b4fe562e611247f7f0bd5eee7a.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb03640160bafb4aca92bae25827b272.png)
⑤平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a843b49a121d3f035af5a48196b0ebc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a48b437f403a1879357cece32efada.png)
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名校
解题方法
4 . 如图,已知
的外接圆为圆
,
为直径,
垂直圆
所在的平面,且
,过点
作平面
,分别交
于点
,则三棱锥
的外接球的体积为________ .
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e7b6d04f024ca05cdfacc8ce9137c15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e052fa774304de59f3b6cd4b27600a20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589c3cc1f331dbb2248b0829039df7f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d82e1b9949d05ef17c0cd24eb9ff9e92.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/25e59663-151c-484f-a43a-9c965479baea.png?resizew=233)
您最近一年使用:0次
2022-10-29更新
|
486次组卷
|
3卷引用:湖南省郴州市2022-2023学年高三上学期第一次教学质量监测数学试题
5 . 半正多面体(semiregularsolid)亦称“阿基米德多面体”,是由边数不全相同的正多边形围成的多面体,体现了数学的对称美.二十四等边体就是一种半正多面体,是由正方体切截而成的,它由八个正三角形和六个正方形构成(如图所示),若它的所有棱长都为
,则正确的序号是______ .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/28/150da44e-6074-42c1-a845-c48d4c5835f3.png?resizew=170)
①
平面
;
②
与
所成角为
;
③该二十四等边体的体积为
;
④该二十四等边体外接球的表面积为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7881094ce2f907c3aaf664318ecd3e2d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/28/150da44e-6074-42c1-a845-c48d4c5835f3.png?resizew=170)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d73133e50823f13346b34ca27007526f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62871bb0dff211fc3bd80f9066c25b29.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7755a8ad7675d65b5eede6e3f34de13f.png)
③该二十四等边体的体积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/054971411459ceb691e4a8ef5e3c6167.png)
④该二十四等边体外接球的表面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/516c3560a3ecd5bca21735e0d28545c6.png)
您最近一年使用:0次
2022-10-24更新
|
859次组卷
|
5卷引用:黑龙江省哈尔滨师范大学青冈实验中学校2021-2022学年高一下学期期末考试数学试题
黑龙江省哈尔滨师范大学青冈实验中学校2021-2022学年高一下学期期末考试数学试题(已下线)第八章 立体几何初步 讲核心 02(已下线)8.3.2 圆柱、圆锥、圆台、球表面积和体积(分层作业)-【上好课】2022-2023学年高一数学同步备课系列(人教A版2019必修第二册)(已下线)8.6.2 直线与平面垂直(2) -2022-2023学年高一数学《考点·题型·技巧》精讲与精练高分突破系列(人教A版2019必修第二册)(已下线)专题强化一 常见几何体表面积和体积必刷题精练-2022-2023学年高一数学《考点·题型·技巧》精讲与精练高分突破系列(人教A版2019必修第二册)
解题方法
6 . 如图所示,在四棱锥P-ABCD中,
,且
,若
,
,则平面APB与平面PBC夹角的余弦值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e59f4730024710b00230d6179cb6837.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ee871f91a4ed3c4a9d54a6854c50431.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e9cef4d65a9f812c10abec698a64953.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/28/3622bb4f-eadf-424d-802d-e08b3ba233c9.png?resizew=157)
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解题方法
7 . 已知正方体
,M,N分别是
,
的中点,则下列结论正确的有_________ (填序号).
①.
②.
③.
平面
④.
平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fa1837109b5c40d3527bda59d204dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90978015963cd6bed37e173561193db9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/481ce9e9fe6f392cbf24bd45938405bc.png)
![](https://img.xkw.com/dksih/QBM/2022/10/12/3086105742131200/3092706495201280/STEM/f77b0a479cad4f21a638e3728cf590ff.png?resizew=189)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39ff7c09b4a0e52f64d52fba87e7088c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17e307346cd73128275549105d2adbd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7592c4f01c8e06c7ee90df5b9413a9f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c0b612af0e0719e78c620a0b9957a4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c2b686751f38c8ecd4d918b3c84abcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a18258b351109305caf15d6c1cc8b1d.png)
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8 . 在正三棱柱
中,已知
,
,若
、
分别是棱
和
上的点(不含端点),则三棱锥
的体积是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b591658d73b4e76b3c4c0d4628ec65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f93edbd735d79524f463085a4e9093bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31d2cd507722b46c7a2137378e31a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/252053b853152bd294a8315debd00b92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655b6a742dbacdab5aaa298007663dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86814dbae9a5343d69bb4647900b3bfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbb16f7dbc4b9993c4efa0764df1d8ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d6a165096e9a21fb803cc1b72d8c0b0.png)
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9 . 如图,等边三角形
的边长为4,
,
分别为
,
的中点,沿MN将
折起,使得平面
与平面
所成的二面角为
,则四棱锥
的体积为_______________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00a28be4d5a16cf245f6fa7c4088fee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe9eeee83b4b7c6ceac7828ff534ce15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f8b1d2fca68dc33fc73596f18a46708.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1885efcff0b903e314057dd153578600.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9238757804254960bc40fa9d87065559.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d1539e1aface1f987d4507caa0edf31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad226d5253d4bc2d8259afb4a772066.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/23/6e2c86fd-8d28-4a33-a847-3735f72cfafa.png?resizew=151)
您最近一年使用:0次
名校
解题方法
10 . 如图,圆锥的母线长是4,底面圆半径是2,S为顶点,O为底面中心,M为线段
上的一点,动点P在圆锥底面内(包括圆周).若
,点P运动形成的轨迹长度为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1039601edd7326b628a3201a3d4af948.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18e5ef91fb27dd684a27ae7f1993cfba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86f04e898cd5458f14e93d443a721678.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b12efb03327f461e868b2ea433f9b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1039601edd7326b628a3201a3d4af948.png)
您最近一年使用:0次
2022-10-15更新
|
349次组卷
|
3卷引用:河南省创新发展联盟2022-2023学年高二上学期10月阶段检测数学试题