名校
解题方法
1 . 已知不同直线
,
,不同平面
,
,
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
A.若![]() ![]() ![]() ![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
2024-01-18更新
|
226次组卷
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7卷引用:山东省滨州市沾化区实验高级中学 2024届高三上学期第二次月考数学试题
山东省滨州市沾化区实验高级中学 2024届高三上学期第二次月考数学试题山东省临沂市沂水四中2024届高三上学期12月月考数学试题(已下线)第一章 点线面位置关系 专题一 空间平行关系的判定与证明 微点2 空间平行关系的判定与证明综合训练【培优版】(已下线)专题09 立体几何(5大易错点分析+解题模板+举一反三+易错题通关)-1湖北省孝感市部分学校2023-2024学年高二上学期9月起点考试数学试题湖北省襄阳市宜城市第一中学2023-2024学年高二上学期9月月考数学试题黑龙江省大庆市大庆中学2023-2024学年高二上学期10月月考数学试题
名校
2 . 设
为平面
内的
个点,平面
内到点
的距离之和最小的点,称为点
的“优点”.例如,线段
上的任意点都是端点
的优点.则有下列命题为真命题的有:( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11421777fd1e12dc743831536d9c0007.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11421777fd1e12dc743831536d9c0007.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11421777fd1e12dc743831536d9c0007.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
A.若三个点![]() ![]() ![]() ![]() ![]() |
B.若四个点![]() |
C.若四个点![]() |
D.直角三角形斜边的中点是该直角三角形三个顶点的优点 |
您最近一年使用:0次
名校
解题方法
3 . 如图,棱长为2的正方体
中,点
分别是棱
的中点,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/9/42586cdf-1250-4e62-9147-6acfa10d74d6.png?resizew=164)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b199a99e53d67ff4abf233930961a29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed906c3cc40665e9e6aace40cd4b7708.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/9/42586cdf-1250-4e62-9147-6acfa10d74d6.png?resizew=164)
A.直线![]() |
B.![]() ![]() |
C.过点![]() ![]() |
D.点![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2023-11-15更新
|
380次组卷
|
2卷引用:山东省菏泽市菏泽三中2024届高三上学期12月月考数学试题
名校
4 . 在正方体
中,直线
平面
,直线
平面
,直线
平面
,则直线
的位置关系可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e0019e49f673a3b11a4259ce3c9a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d983307d4345e724d9dd44935274843d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15b02e0c74a66739bc83f73b5c5513cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ead7f004a93707d658819c75a89dfa0.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-11-14更新
|
393次组卷
|
4卷引用:山东省潍坊市2024届高三上学期期中考试数学试题
名校
5 . 如图,
为矩形,
为梯形,平面
平面
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/16/e203ce5f-037d-48c8-bb07-1f35f66669d4.png?resizew=202)
(1)若M为
中点,求证:
平面
;
(2)设平面
平面
,试判断
与平面
能否垂直?并证明你的结论;
(3)在(1)条件下,求平面
与平面
所夹的锐二面角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5bf51c07144386bd23a422d9ceb140.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6379891c7150af4188b5ab746d703bae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d20fec32122b4a70b993976201c9ba9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0046177466c78f08d45449dc5639bf38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbe7a201432af0a2f9d21c6803906f5c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/16/e203ce5f-037d-48c8-bb07-1f35f66669d4.png?resizew=202)
(1)若M为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8197bf06d017950c85c3ba6a291c095e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df21b7b7a47318ef2bb069450c39f1cd.png)
(2)设平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c659d2ab07b9b66ed9a60cb604dd9aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b951997af111a840cb333a082137402.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(3)在(1)条件下,求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df21b7b7a47318ef2bb069450c39f1cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
名校
6 . 如图,在四棱锥
中,底面
为矩形,
平面
,
,
,
分别为
,
,
的中点,点
在棱
上,且
平面
,则三棱锥
的外接球的表面积为______ .
![](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/b5f1897a7e856b42f8cee0f286ad913d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02941fc1a06a22223d6a5fd49a7eb139.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6241f9ef86cd0a902cbadaf336767dbc.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/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb5fc14f458801f8e678add5da75bc21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2563565df52ca732c5ee32ebfee692af.png)
您最近一年使用:0次
2023-09-19更新
|
284次组卷
|
4卷引用:山东省金科大联考2023-2024学年高三上学期9月质量检测数学试题
山东省金科大联考2023-2024学年高三上学期9月质量检测数学试题(已下线)考点8 平行的判定与性质 2024届高考数学考点总动员河北省衡水市郑口中学2024届高三第三次质量检测数学试题重庆市朝阳中学2023-2024学年高一下学期5月月考数学试题
名校
解题方法
7 . 已知在四棱锥
中,底面
为梯形,且
的交点为
,在
上取一点
,使得
平面
,四棱锥
的体积为
,三棱锥
的体积为
,则下面结论正确的为( )
![](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/29823b6e974d90a8e64db34f1c593f3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6bf5e78398cde7a87c2669746d2f66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/373f735f0f04d11f1951eaef1bb78b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6096e490592b9cbf1969565caef36a14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4764374bd2fb78e59cd0b283637baeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f363d62f07ecc579b22a708fd1779c3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63055a5d6916f99d07fede49120753f.png)
A.![]() | B.![]() |
C. ![]() | D.![]() |
您最近一年使用:0次
8 . 四棱锥
中,底面
为矩形,
,
,平面
与平面
的交线为
.
(1)求证:直线
平行于平面
;
(2)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39564987082f8dfe941c6fa5ba328144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc3ff0e6ccd6a6e71fbb175b0ccc71bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d923a338dd2d2e29336b42574d38448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21665d21bbfb04410c78345de1fd15ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/5/3cd72f1f-d419-4140-a3c9-99108561ce6f.png?resizew=130)
(1)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bde8b2ab7f5f834aed51a526f1f27a0.png)
您最近一年使用:0次
名校
9 . 如图,已知圆柱母线长为
,底面圆半径为
,梯形
内接于下底面,
是直径,
//
,
,点
在上底面的射影分别为
,
,
,
,点
分别是线段
,
上的动点,点Q为上底面圆内(含边界)任意一点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.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/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c82a10b4f0c9323d726804c89dd9548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/31/98aa4952-9475-4ca2-9c91-f97436f7b943.png?resizew=166)
A.若面![]() ![]() ![]() ![]() ![]() |
B.若面![]() ![]() ![]() |
C.![]() |
D.当点Q在上底面圆周上运动时,记直线![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2023-05-29更新
|
793次组卷
|
3卷引用:山东省淄博市2023届高三三模数学试题
名校
10 . 如图,三棱台
中,
,
是
的中点,点
在线段
上,
,平面
平面
.
(1)证明:
;
(2)若平面
平面
,
,
,求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/986ba572d8373df48c996f8c8611498c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5545dc3211671941048034af38092fa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6813b47d087578bf054bcf56b64b42a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b25bc6d842432f74f18c2a92cdc14e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d59f321362853cd5473f306fa17fd92a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/27/a62df7cd-5e58-4114-8acb-6725bb1b3b66.png?resizew=164)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9f6079d1b0033b46fe2909ea602d1e5.png)
(2)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcc97cc47a65c900c7ff295c5e7e576d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/822ba132ca9dd0d4a050659aef3c9b26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f19c369389fa3bfa23de98ffd7b4037c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/193b5b41994c2a4dfa5bb0bc984061cc.png)
您最近一年使用:0次
2023-05-26更新
|
1064次组卷
|
4卷引用:山东省聊城市2023届高三三模数学试题
山东省聊城市2023届高三三模数学试题江苏省扬州市高邮中学2023届高考前热身训练(二)数学试题福建省龙岩第一中学2023届高三第六次模拟数学试题(已下线)专题06 立体几何 第一讲 立体几何中的证明问题(分层练)