名校
解题方法
1 . 故宫角楼的屋顶是我国十字脊顶的典型代表,如图1,它是由两个完全相同的直三棱柱垂直交叉构成,将其抽象成几何体如图2所示.已知三楼柱
和
是两个完全相同的直三棱柱,侧棱
与
互相垂直平分,
交于点I,
,
,则点
到平面
的距离是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5399fca789fea184a162bfb6d95afd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f523fc81603a5c4cdff956a5c3298b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8856a6bbd1648fef7aaa384366e9016f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df32f10590eccf0d07989db09ad7d48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c507610f462120218e2cd1894c957eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd4b93d7abcfc4c3df48f03aa969c17f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
2 . 如图,正八面体
棱长为2,P为棱MC上一动点(不含端点).下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5850fcf863554545a5bfa749abeead18.png)
A.存在点P,使得![]() |
B.当P为棱MC的中点时,正八面体表面从N点到P点的最短距离为![]() |
C.异面直线AP和MD所成角随PC的增大而减小 |
D.以正八面体中心为球心,1为半径作球,球被正八面体各个面所截得的交线总长度为![]() |
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解题方法
3 . 如图,在矩形ABCD中,
,
,M是AD的中点,将
沿着直线BM翻折得到
.记二面角
的平面角为
,当
的值在区间
范围内变化时,下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a5e0a51c9e14fb246b0ba0b231c1e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46356d335bec7688dc90f33ac9213d4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9052adaffb2d28fd9a3cd737a9b4ef28.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/083479b94380e8d659eff92d10a1989d.png)
A.存在![]() ![]() |
B.存在![]() ![]() |
C.若四棱锥![]() ![]() ![]() |
D.若直线![]() ![]() ![]() |
您最近一年使用:0次
2024-04-30更新
|
611次组卷
|
3卷引用:江苏省南京市南京师范大学附属中学2023-2024学年高二下学期期中考试数学试卷
4 . 如图,四面体
中,
.
(1)求证:平面
平面
;
(2)若
,
①若直线
与平面
所成角为30°,求
的值;
②若
平面
为垂足,直线
与平面
的交点为
.当三棱锥
体积最大时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f6c03029467212c952b89696f45456d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/23/2f9a3c3f-41a9-40b4-a456-a8b33158146b.png?resizew=164)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06123e81c41198c76a3335757fac2c93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1e156c3e4ffa35ed0ac6526c8d8753d.png)
①若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf4c26f3f4d96117f087400a0f32ece8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17622ea6f6f5afd1ad817a557e5889d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d742e749b1140b21512408d555f14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e4fa04825ac7d071968056322d88be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf4c26f3f4d96117f087400a0f32ece8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be743a99c9d9c2775ced96ccf86d178.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91f0b8e4d79f6276b0ab054d887183a8.png)
您最近一年使用:0次
2024-04-19更新
|
711次组卷
|
3卷引用:江苏省南京市五所高中学校合作联盟2023-2024学年高二下学期期中学情调研数学试卷
江苏省南京市五所高中学校合作联盟2023-2024学年高二下学期期中学情调研数学试卷(已下线)模块三 专题2 解答题分类练 专题3 空间向量线性运算(苏教版)江苏高二专题02立体几何与空间向量(第二部分)
名校
解题方法
5 . 已知正方体
棱长为4,点N是底面正方形ABCD内及边界上的动点,点M是棱
上的动点(包括点
),已知
,P为MN中点,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be8d02ea60833af13e56ca497b559b12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ee7af832af9460f4775fa5c8c3620f.png)
A.无论M,N在何位置,![]() | B.若M是棱![]() ![]() |
C.M,N存在唯一的位置,使![]() ![]() | D.AP与平面![]() ![]() |
您最近一年使用:0次
2024-03-03更新
|
862次组卷
|
4卷引用:河南省南阳市西峡县第一高级中学2023-2024学年高二下学期第一次月考数学试卷
6 . 如图,圆锥的顶点为P,底面圆心为
.点A,B,M是底面圆周上三个不同的点,且
.已知
,则下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/19/57b742eb-c33b-4e24-bdb4-68f686fb012f.png?resizew=142)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36255578eee7d5980cd1f14fec45d77a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/19/57b742eb-c33b-4e24-bdb4-68f686fb012f.png?resizew=142)
A.三棱锥![]() ![]() |
B.当![]() ![]() ![]() |
C.存在点M,使得直线![]() ![]() |
D.当直线![]() ![]() ![]() ![]() |
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解题方法
7 . 古希腊数学家阿波罗尼斯采用平面切割圆锥面的方法来研究圆锥曲线.后经研究发现:当圆锥轴截面的顶角为
时,用一个与旋转轴所成角为
的平面
(不过圆锥顶点)去截该圆锥面,则截口曲线(圆锥曲线)的离心率为
.比如,当
时,
,即截得的曲线是抛物线.如图,在空间直角坐标系
中放置一个圆锥,顶点
,底面圆O的半径为2,直径AB,CD分别在x,y轴上,则下列说法中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/13/d41359ad-7f9e-4e5a-817d-0f9cb36bf3c5.png?resizew=174)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8dd0c52aca1675c17b9a019aa7901e3.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/0e55f4e5a5d84670bbf3de150da74b62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffa3205b1df826d63914dcb55bb3ab43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09dbcaa127022fbd6b6f13345196408a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a834024400d0730af3e640ca4d5f54b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd5467f64f0f9f4293c63f0dce1c0f42.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/13/d41359ad-7f9e-4e5a-817d-0f9cb36bf3c5.png?resizew=174)
A.已知点![]() ![]() |
B.平面MAB截该圆锥得的截口曲线为抛物线的一部分 |
C.若![]() |
D.若平面![]() ![]() ![]() |
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8 . 学习几何体结构素描是学习素描的重要一步.如图所示,这是一个用来练习几何体结构素描的石膏几何体,它是由一个圆柱
和一个正三棱锥
穿插而成的对称组合体.棱
和面
与圆柱侧而相切,点
是棱
与圆柱侧而的切点.直线
分别与面
,面
交于点
,圆柱
在面
,面
上分别截得椭圆
.在平面
和平面
中,椭圆
上分别有两组不重合的两点
和
(图中未画出).且满足关系
.已知三棱锥
的外接球表面积为
,圆柱的底面直径为
,请问平面
,平面
上是否分别存在点
,使得对于满足
的直线
分别恒过定点
.若存在,试求
和
夹角的余弦值:若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270ddac9587bf1ea553914cb69595ab2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270ddac9587bf1ea553914cb69595ab2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d096cd7bd8a5a2219fd7dd166bbb8460.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270ddac9587bf1ea553914cb69595ab2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13d726b14a313e000a81526162f35748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13d726b14a313e000a81526162f35748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c121f8f04b49c7036888316b5f35e93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c121f8f04b49c7036888316b5f35e93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8461e08e60b84222ef056f49e71fa20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad044057e3a5b2f033d9ad0006b6f50e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b46bf815a5a193e9f5fc73078fb39d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357e0872d9e98d662a780e7686de86ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af67b85b1c91d1b489332503f6aaa8ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c37d0645be8436fa5c7a6ee8ba7de527.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357e0872d9e98d662a780e7686de86ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cefbad5a2e9e1e812b54c5e972cf98d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d1e25f3c8094bf9da6eabef95e8214.png)
![](https://img.xkw.com/dksih/QBM/2024/1/13/3410267677220864/3410816027746304/STEM/273256e47234495eaf4d1e8d41ba7a4a.png?resizew=183)
您最近一年使用:0次
解题方法
9 . 如图所示,四棱锥
中,
为
的中点,
、
分别为线段
、
上的一动点;
为等边三角形,底面
为平行四边形,平面
平面
,
,
,下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/8/6a09550c-d51f-4bed-a6bd-79a580fed658.png?resizew=166)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f99f724bb3614b40d63b284abaa7993f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d2871c2cd274769835f769bb3a6219c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/8/6a09550c-d51f-4bed-a6bd-79a580fed658.png?resizew=166)
A.存在点![]() ![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.![]() ![]() |
D.若三棱锥![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
名校
解题方法
10 . 如图,在直四棱柱
中,
,
,点
在以线段
为直径的圆
上运动,且
三点共线,点
分别是线段
的中点,下列说法中正确的有( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/8/095d946e-7337-48be-b0cd-5316e48dc72f.png?resizew=133)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c14a66ed4bd66df65bc42c4ac1ed15c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92535536bd3c2761724fd058427f95a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbdb21011ea821b91d539cb763aac649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bebda859049666cad4f183c43a7c1a30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/067d7b8fd6a5f6fa75843708fed6459f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/8/095d946e-7337-48be-b0cd-5316e48dc72f.png?resizew=133)
A.存在点![]() ![]() ![]() |
B.当直四棱柱![]() ![]() ![]() |
C.当![]() ![]() ![]() |
D.当![]() ![]() ![]() |
您最近一年使用:0次
2024-01-21更新
|
306次组卷
|
2卷引用:四川省成都市2023-2024学年高二上学期1月期末数学试题