名校
1 . 如图,在正方体
中,
分别是
,
的中点,
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/29/982d3035-59c3-4fca-ab3e-a43c3b538ffe.png?resizew=216)
(1)求证
∥平面
;
(2)求
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/29/982d3035-59c3-4fca-ab3e-a43c3b538ffe.png?resizew=216)
(1)求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b4cd2b33bd983a9ed6575b9de04a46a.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ebb05874eb3353d754af24c9974273e.png)
您最近一年使用:0次
名校
2 . 如图,在四棱锥P-ABCD中,底面ABCD为正方形,PD=BC=1,二面角P-CD-A为直二面角.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/27/f5846101-5d0c-44eb-ac06-4a3c8cb50739.png?resizew=197)
(1)若E为线段PC的中点,求证:DE⊥PB;
(2)若PC=
,求PC与平面PAB所成角的正弦值.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/27/f5846101-5d0c-44eb-ac06-4a3c8cb50739.png?resizew=197)
(1)若E为线段PC的中点,求证:DE⊥PB;
(2)若PC=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
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2022-09-26更新
|
507次组卷
|
8卷引用:8.6.2 空间角与空间距离(精练)-2022-2023学年高一数学一隅三反系列(人教A版2019必修第二册)
(已下线)8.6.2 空间角与空间距离(精练)-2022-2023学年高一数学一隅三反系列(人教A版2019必修第二册)山东省青岛市青岛中学2022-2023学年高一上学期10月月考数学试题(已下线)高一数学下学期第二次月考模拟试卷(第6章-第8章)新疆石河子第一中学2022-2023学年高一下学期5月月考数学试题浙江省温州十校联合体2020-2021学年高二下学期期中联考数学试题(已下线)第九章 立体几何专练11—线面角大题1-2022届高三数学一轮复习(已下线)第50讲 用综合法求角与距离(已下线)第52讲 空间向量在立体几何中的运用
解题方法
3 . 如图所示,
.在平面
内,
是
的斜线,
.求
与平面
所成的角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bffd88acaf36eb1db328fef1ee6172b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/17/f0d34c2b-8a79-4c1a-86dc-554da737ead5.png?resizew=250)
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解题方法
4 . 如图,若
为正方体
的面
的中心,求直线
与下列各平面所成角的大小:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/45aab556-8621-4e93-a37f-028771faea70.png?resizew=160)
(1)平面
;
(2)平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c52091eb745de866044477641a7c55f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/45aab556-8621-4e93-a37f-028771faea70.png?resizew=160)
(1)平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ebb05874eb3353d754af24c9974273e.png)
(2)平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2bf9ef324f1289e205e29fed105c38e.png)
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解题方法
5 . 如图,
,
是平面
的斜线,已知
,
,点
到平面
的距离为
,
和平面
所成角的大小为45°,求
和平面
所成角的大小.
![](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/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9b9bb0f509e6f3d30858efb217c1f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://img.xkw.com/dksih/QBM/2022/9/14/3066353699037184/3066896435970048/STEM/0b28d29edfce436cad55a14989a93013.png?resizew=234)
您最近一年使用:0次
解题方法
6 . (1)如下左图,
,
是平面
的两条斜线段,若直线
,
与
所成角分别为
,
,那么使得
成立的一个充要条件可以是______.
![](https://img.xkw.com/dksih/QBM/2022/9/14/3066353699037184/3066896435642368/STEM/a1d382c7a82445ca8b4d038b467f1283.png?resizew=554)
(2)在上右图中,画出两条平行直线在平面
内的射影的所有可能图形.
![](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/e170f206fdbbd834aad7580c727e2cc6.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/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f64fa38725c136504f723019a18dc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e93fa313adc4ac7608ba9449fd755212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9a795e7831009eebc624bb868d79015.png)
![](https://img.xkw.com/dksih/QBM/2022/9/14/3066353699037184/3066896435642368/STEM/a1d382c7a82445ca8b4d038b467f1283.png?resizew=554)
(2)在上右图中,画出两条平行直线在平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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7 . 如图,
在平面
上,OA是
的斜线,若
,
,
,求OA与平面
所成的角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.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/4387f0fba7185849802737038647b7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c53d934a0cd9512e6df17c8f311c3ce4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f144992e1cbee34868abce1e5ad38c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/80f39c07-2301-477f-90d8-9015818f087f.png?resizew=207)
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名校
8 . 某班级到一工厂参加社会实践劳动,加工出如图所示的圆台O1O2,在轴截面ABCD中,AB=AD=BC=2cm,且CD=2AB,下列说法正确的有( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/17/b9424adf-194a-4d18-93ab-87dd767093eb.png?resizew=321)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/17/b9424adf-194a-4d18-93ab-87dd767093eb.png?resizew=321)
A.该圆台轴截面ABCD面积为![]() ![]() |
B.该圆台的体积为![]() ![]() |
C.该圆台的母线AD与下底面所成的角为30° |
D.沿着该圆台表面,从点C到AD中点的最短距离为5cm |
您最近一年使用:0次
2022-09-15更新
|
988次组卷
|
15卷引用:8.3 简单几何体的表面积与体积-2021-2022学年高一数学10分钟课前预习练(人教A版2019必修第二册)
(已下线)8.3 简单几何体的表面积与体积-2021-2022学年高一数学10分钟课前预习练(人教A版2019必修第二册)4.5.2 几种简单几何体的体积广东省广州市白云区、海珠区2020-2021学年高一下学期期末数学试题福建省厦门双十中学2021-2022学年高一下学期期中考试数学试题(已下线)期末模拟卷-2021-2022学年高一数学链接教材精准变式练(人教A版2019必修第二册)(已下线)专题10 立体几何的综合问题-2021-2022学年高一数学下学期期末必考题型归纳及过关测试(人教A版2019)(已下线)第08讲 简单几何体的表面积和体积(核心考点讲与练)-2021-2022学年高一数学考试满分全攻略(人教A版2019必修第二册)湖北省武汉市江岸区2021-2022学年高一下学期期末数学试题(已下线)第8.3讲 简单几何体的表面积与体积-2021-2022学年高一数学链接教材精准变式练(人教A版2019必修第二册)浙江省宁波市咸祥中学2021-2022学年高一下学期期末数学试题安徽省滁州市定远县育才学校2021-2022学年高一下学期期中考试数学试题内蒙古自治区呼和浩特市内蒙古师范大学附属中学2022-2023学年高一下学期期末数学试题湖南省长沙市长郡中学2021-2022学年高一下学期期末综合复习数学试题(已下线)第九章 立体几何专练3—简单几何体的表面积与体积1-2022届高三数学一轮复习湖北省十堰市丹江口市第一中学2021-2022学年高二上学期9月月考数学试题
解题方法
9 . 如图,PA、PB是平面
的斜线,已知
,
,点P到平面
的距离为3,PA和平面
所成的角为30°,求PB和平面
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9b9bb0f509e6f3d30858efb217c1f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.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/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/99b6ee67-d7b8-4324-b802-1efee129a5f6.png?resizew=234)
您最近一年使用:0次
解题方法
10 . 如图,在长方体
中,
,
,M是AB的中点,求直线
与平面ABCD所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b37750daa8ba3b3fe3e9e2092f81c848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/addeea01940f22482a564f461d671b3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19ef601ca1f9c4c031adab4ffed297f0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/15/5a2cc993-b8c7-4e5b-94ec-6709e473380f.png?resizew=184)
您最近一年使用:0次