1 . 如图,在三棱柱
中,
,顶点
在底面
上的射影恰为
点,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/14/c10159ec-e8a3-4fe7-8c9a-7e26479b3245.png?resizew=133)
(1)分别求出
与底面
、棱
所成的角的大小;
(2)在棱
上确定一点
,使
,并求出二面角
的平面角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d76cef03e6b2d02024495a840ab451.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/14/c10159ec-e8a3-4fe7-8c9a-7e26479b3245.png?resizew=133)
(1)分别求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)在棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d1f2ff0805c573e3c1fc1720d4e531e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ee992e4455f983dcec7c98d0e51e194.png)
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解题方法
2 . 如图是一个无盖的正方体盒子展开图,
,
,
,
是展开图上的四点,则在正方体盒子中,
与平面
所成角的正弦值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/b8afdd82-bc38-4827-a9ae-c2792a24ec94.png?resizew=136)
![](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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/b8afdd82-bc38-4827-a9ae-c2792a24ec94.png?resizew=136)
A.![]() | B.![]() | C.![]() | D.![]() |
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2021-11-21更新
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201次组卷
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3卷引用:四川省成都市郫都区2021-2022学年高二上学期期中考试数学(理)试题
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3 . 球
的表面积为
,三棱柱
的顶点在球面上,且三角形
是边长为
的正三角形,则
所在直线与平面
所成角的正弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad044057e3a5b2f033d9ad0006b6f50e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a904c6881536be51416116ab966cf8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
4 . 直线m和平面
所成角为
,则直线m和平面
内任意直线所成角的取值范围是_____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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482次组卷
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10卷引用:上海市徐汇中学2021-2022学年高二上学期期中数学试题
上海市徐汇中学2021-2022学年高二上学期期中数学试题上海市格致中学2021-2022学年高二上学期12月月考数学试题上海市文来高中2022-2023学年高一上学期期中数学试题上海市嘉定区第一中学2021-2022学年高二上学期12月月考数学试题沪教版(2020) 必修第三册 新课改一课一练 第10章 10.3.3 直线与平面所成的角(已下线)第01讲 空间直线与平面(核心考点讲与练)(1)(已下线)上海高二上学期期中【夯实基础60题考点专练】(2)上海海事大学附属北蔡高级中学2022-2023学年高二上学期12月月考数学试题上海市金山中学2021-2022学年高二上学期期末数学试题(已下线)10.3 直线与平面所成的角 (第4课时)(作业)(夯实基础+能力提升)-【教材配套课件+作业】2022-2023学年高二数学精品教学课件(沪教版2020必修第三册)
名校
5 . 在棱长为2的正方体
中,E、F分别是BC、CD的中点.
(1)求证:
;
(2)求直线
与平面
所成角的大小;
(3)若点G、H分别为线段
上的动点,点P为底面
上的动点,求GH+GP的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85a406812f60087b799d16ebd5c1259e.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16a6a7bf19f1bb49ab5a90bb236a7318.png)
(3)若点G、H分别为线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2258f0c4c1535f0ee3ab3cd87619ae5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
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6 . 如图,在四棱锥
中,四边形
是菱形,对角线
与
的交点为
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/19/29c0f9aa-0e8c-4aaf-8b35-747303168a6d.png?resizew=217)
(1)证明:
平面
;
(2)点
在棱
上,若体积
,求:
①
点的位置;
②
与平面
所成角的正切值.
![](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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcbf0ecf8b70dcca43b9e67fd3083e45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c85aeab3aeaf4367b711da8cde2e8bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ec435aa1401dbce7863b531bf2f3e5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/19/29c0f9aa-0e8c-4aaf-8b35-747303168a6d.png?resizew=217)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e126c16032892966489053f44b9048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/499b9c860d55d51d4d1868cd40528668.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f571a1aac46c6d0cf440c0ec2846bf9.png)
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7 . 如图,在直三棱柱
中,底面
为等腰直角三角形,
,
,
,
是侧棱
上一点,设
.
![](https://img.xkw.com/dksih/QBM/2021/11/16/2852650345037824/2854469802041344/STEM/af56b6d5-6288-4888-b456-66ca73f49f9e.png?resizew=207)
(1)若
,求异面直线
与
所成角的大小;
(2)若
,求直线
与平面
所成角的大小;
(3)若
,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c3e9ef3e849788645552cfb0735d987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55a2310cbba5e050488cd9296eb195d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72d4b759e341f967a93fc478e795b72f.png)
![](https://img.xkw.com/dksih/QBM/2021/11/16/2852650345037824/2854469802041344/STEM/af56b6d5-6288-4888-b456-66ca73f49f9e.png?resizew=207)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfa575d601b92968dfcff972dfa111e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e753dc81ed21f878fff89e98cccf24a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b7d857811cbd619f868d951aa7a0ab8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3653ada76ba0c8afe9d57c8e7832c6ed.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8db8814b2124793c2bdf3ea701fb14ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9afac7c616bbb14e1ed428a3c507c7dc.png)
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2021-11-19更新
|
218次组卷
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3卷引用:上海市闵行(文琦)中学2021-2022学年高二上学期期中数学试题
名校
8 . 已知正方体
的棱长为3,点
在底面正方形的边
上,且
.
![](https://img.xkw.com/dksih/QBM/2021/11/16/2852650345037824/2854469801984000/STEM/eea5dc17b9ca449188f120a234df7b29.png?resizew=198)
(1)求异面直线
与
所成的角的大小;
(2)求直线
与面
所成的角的大小.
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1364213f546b37f8764ddcb59e36ae4.png)
![](https://img.xkw.com/dksih/QBM/2021/11/16/2852650345037824/2854469801984000/STEM/eea5dc17b9ca449188f120a234df7b29.png?resizew=198)
(1)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e516121599c9fcc528121c00afcf52fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e516121599c9fcc528121c00afcf52fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
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解题方法
9 . 已知正三棱柱
中,各棱长均相等,则
与平面
所成角的余弦值为_____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac61c24f99a4e466f1e2ea011893866.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/3b7b1d6b-cf4c-47b1-b1fe-cb90d4d78a15.png?resizew=145)
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10 . 已知正方体
的棱长为1,点
是线段
的中点,点
是线段
上的动点,则下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/8ad3df77-546a-40a1-894c-f9066e457819.png?resizew=180)
![](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/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/8ad3df77-546a-40a1-894c-f9066e457819.png?resizew=180)
A.点![]() ![]() ![]() |
B.![]() ![]() ![]() |
C.![]() ![]() |
D.三棱柱![]() ![]() |
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