名校
1 . 如图,在三棱柱
中,
在底面ABC上的射影为线段BC的中点,M为线段
的中点,且
,
.
的体积;
(2)求MC与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8431a9f76fe9f867b50a818e8b1cf6c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8e9ec412ea0355e4e5cd06c60e5fee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4475e0a3df7ba0a5679c5f1795525713.png)
(2)求MC与平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd544dfc0e7c893a15e2cc23177be184.png)
您最近一年使用:0次
2024-03-06更新
|
1264次组卷
|
7卷引用:山东省菏泽第一中学人民路校区2024届高三下学期开学考试数学试题
山东省菏泽第一中学人民路校区2024届高三下学期开学考试数学试题2024届江苏省南通市徐州市高三2月大联考模拟预测数学试题(已下线)第3讲:立体几何中的探究问题【讲】(已下线)第06讲 空间直线﹑平面的垂直(一)-《知识解读·题型专练》(已下线)高一下学期期中复习解答题压轴题十八大题型专练(2)-举一反三系列(人教A版2019必修第二册)(已下线)第13章 立体几何初步 章末题型归纳总结 (1)-【帮课堂】(苏教版2019必修第二册)(已下线)重难点专题13 轻松搞定线面角问题-【帮课堂】(苏教版2019必修第二册)
名校
2 . 如图,已知正方形
的边长为1,
平面
,三角形
是等边三角形.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/1/8f4f328a-c6c2-4307-b12b-86ff4e7c7d22.png?resizew=143)
(1)求异面直线
与
所成的角的大小;
(2)点
在线段
上,若
,求
与平面
所成的角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dba76518a473722e04cfbac3a4333bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce03b310edce42191f9fa75a1c909ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dba76518a473722e04cfbac3a4333bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/1/8f4f328a-c6c2-4307-b12b-86ff4e7c7d22.png?resizew=143)
(1)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348fb71fbc47fd87e9ce011652ef4186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
您最近一年使用:0次
名校
解题方法
3 . 如图,在直三棱柱
中,
,
,点
为
中点,连接
、
交于点
,点
为
中点.
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
平面
;
(2)求证:平面
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78f7050f3151f3107611ddfef1709eef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/269c684310d0f7b5b9bf0a291e7ee748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.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/f2eb89294b31ffdd2680b4361e8994d7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/16/66c71b4b-7ad2-40b1-b229-c4d3d091b439.png?resizew=140)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54415b35519030aaa5f7edf879f1160c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41104641f3e2260d00aeadf8fb8a078a.png)
您最近一年使用:0次
名校
4 . 如图,正方体
的棱长为1,线段
上有两个动点
,且
,则下列结论中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f115f2683c0422042f1846450885e7fe.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/16/61b81ff0-b188-4ed1-96c2-40a85697a28e.png?resizew=166)
A.![]() ![]() |
B.直线![]() ![]() ![]() |
C.![]() ![]() |
D.三棱锥![]() |
您最近一年使用:0次
2023-09-13更新
|
607次组卷
|
3卷引用:山东省烟台市第一中学2023-2024学年高二上学期开学考试数学试题
名校
解题方法
5 . 如图,在棱长都相等的三棱柱
中,
底面
,
,
分别是棱
,
的中点,则下列叙述错误的是
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/2023/9/4/3317684898316288/3318286128365568/STEM/b65b7cf2fa8f4d49929d5bc18082a7c8.png?resizew=4)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/6/d03ceee3-a214-4b8d-803b-1ef69e543bca.png?resizew=159)
A.![]() ![]() |
B.![]() |
C.![]() ![]() |
D.![]() |
您最近一年使用:0次
6 . 已知边长为
的菱形
中,
,将
沿
翻折,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c4b149d505b7dc853931cb9ad374e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
A.在翻折的过程中,直线![]() ![]() |
B.在翻折的过程中,三棱锥![]() ![]() |
C.当![]() ![]() ![]() ![]() ![]() |
D.在翻折的过程中,三棱锥![]() ![]() |
您最近一年使用:0次
名校
解题方法
7 . 如图,在正方体
中,
为
的中点( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/20/8c8f7e77-7ebf-455e-abed-af395e505003.png?resizew=153)
A.![]() ![]() ![]() |
B.![]() |
C.若正方体的棱长为1,则点![]() ![]() ![]() |
D.直线![]() ![]() ![]() |
您最近一年使用:0次
2023-08-19更新
|
1052次组卷
|
5卷引用:山东省济南外国语学校2021-2022学年高二上学期开学数学试题
名校
解题方法
8 . 如图,在四棱锥
中,
平面
,
,
,
,
.
(1)证明:
;
(2)若
为线段
的靠近
点的四等分点,判断直线
与平面
是否相交?如果相交,求出
到交点
的距离,如果不相交,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81981fd7b343f4fe2db8f36eb66c1ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e673ef2d48215ca84a48377f17d6df00.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/2/da83d537-7ca8-4542-b688-3ad842ebe585.png?resizew=138)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf6c62979a7aa534a191d8387a741e8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/218054144a13435580cd132b9459546c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
您最近一年使用:0次
2023-05-30更新
|
919次组卷
|
3卷引用:山东省实验中学2023届高三第二次模拟考试数学试题
9 . 如图,四边形
为矩形,
平面
,
,且
,记四面体
,
,
的体积分别为
,
,
,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/28/906d3324-f199-4aeb-b0e8-5e0e1dfea148.png?resizew=155)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92e4072cbb86d624d775ae8cdb8a351d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d82c658f1451fe0aec5c04f65994a203.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c482ee1668a59ca21f3ae8b6bad58eae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3668b8463c08e4e0dc594cd82af40891.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b38691c0f8804eb03c192070b27fcfee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4764374bd2fb78e59cd0b283637baeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63055a5d6916f99d07fede49120753f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3411c87c90bd10bbadd9201630bf45f4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/28/906d3324-f199-4aeb-b0e8-5e0e1dfea148.png?resizew=155)
A.直线![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.![]() |
D.直线![]() ![]() ![]() |
您最近一年使用:0次
2023-03-20更新
|
590次组卷
|
4卷引用:山东省青岛第二中学2022-2023学年高二下学期期初考试数学试题
山东省青岛第二中学2022-2023学年高二下学期期初考试数学试题山东省烟台栖霞市第一中学2022-2023学年高一下学期6月月考数学试题(已下线)重难点专题03 空间直线平面的垂直-【同步题型讲义】河南省洛阳市第二高级中学2022-2023学年高一下学期5月月考数学试题
名校
10 . 已知在三棱锥
中,
,
,
,
,设二面角
的大小为
,
是
的中点,当
变化时,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83640592853a53872d7af69c0cffc1bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b49e6f5796ed8f8904dd59564bc6db4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d294d69caac577339f11f477b2047e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
A.存在![]() ![]() |
B.存在![]() ![]() ![]() |
C.点![]() |
D.当![]() ![]() ![]() |
您最近一年使用:0次
2023-01-16更新
|
1446次组卷
|
5卷引用:山东省实验中学2023届高三下学期开学适应性训练数学试题
山东省实验中学2023届高三下学期开学适应性训练数学试题江苏省南通市区、启东市、通州区2022-2023学年高三上学期期末联考数学试题(已下线)江苏省七市2022届高三下学期第二次调研考试数学试题变式题11-16浙江金华第一中学2022-2023学年高三下学期3月月考数学试题(已下线)技巧01 单选题和多选题的答题技巧(10大核心考点)(讲义)