2021高三·江苏·专题练习
1 . 四棱锥P﹣ABCD,底面为正方形ABCD,边长为4,E为AB中点,PE⊥平面ABCD.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/4d3cac13-11ed-469d-942c-e34d394c30ea.png?resizew=199)
(1)若△PAB为等边三角形,求四棱锥P﹣ABCD的体积;
(2)若CD的中点为F,PF与平面ABCD所成角为45°,求PC与AD所成角的大小.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/4d3cac13-11ed-469d-942c-e34d394c30ea.png?resizew=199)
(1)若△PAB为等边三角形,求四棱锥P﹣ABCD的体积;
(2)若CD的中点为F,PF与平面ABCD所成角为45°,求PC与AD所成角的大小.
您最近一年使用:0次
2021-04-06更新
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1188次组卷
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7卷引用:黄金卷06-【赢在高考·黄金20卷】备战2021年高考数学全真模拟卷(江苏专用)
(已下线)黄金卷06-【赢在高考·黄金20卷】备战2021年高考数学全真模拟卷(江苏专用)上海市奉贤区致远高中2020-2021学年高二下学期期中数学试题(已下线)专题13.3 空间图形的表面积和体积(重点练)-2020-2021学年高一数学十分钟同步课堂专练(苏教版2019必修第二册)沪教版(2020) 必修第三册 新课改一课一练 期末测试B江西省宜春市万载中学2021-2022学年高一下学期第二次月考数学(文)试题(已下线)专题11空间向量与立体几何必考题型分类训练-1(已下线)第20讲 空间向量与立体几何-3
名校
解题方法
2 . 如图,在三棱台
中,平面
平面
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/18/b048d51a-d5ef-49e8-a5ef-4273dcd1bcf9.png?resizew=172)
(1)证明:
;
(2)求直线
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/df00cdf77ed39ca5a0b305861a693142.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f06b0e94cdaa7ae2b15cedcb9ea02701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beb6617efc79b8b24932a51634ac3e6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb4957406b21df59fdf7fa184752287b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/18/b048d51a-d5ef-49e8-a5ef-4273dcd1bcf9.png?resizew=172)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef8a2f9862ddd955ab46721ff764f2ec.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f96c673a2381f118ea2d3efc0bca1f3.png)
您最近一年使用:0次
2021-03-12更新
|
391次组卷
|
2卷引用:江苏省常州市前黄高级中学2021届高三下学期学情检测(三)数学试题
3 . 如图,在直三棱柱
中,底面是等腰直角三角形,
且
,侧棱
,D,E分别是
,
的中点.
![](https://img.xkw.com/dksih/QBM/2021/1/27/2644956987752448/2646088081498112/STEM/f4c839f56bc54dad8dd14b93c5d8e6ff.png?resizew=227)
(1)求直三棱柱
的体积(用字母a表示);
(2)若点E在平面ABD上的射影是三角形ABD的重心G,
①求直线EB与平面ABD所成角的余弦值;
②求点
到平面ABD的距离
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3d296e0d7154a170cb7d3ae42989b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92535536bd3c2761724fd058427f95a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://img.xkw.com/dksih/QBM/2021/1/27/2644956987752448/2646088081498112/STEM/f4c839f56bc54dad8dd14b93c5d8e6ff.png?resizew=227)
(1)求直三棱柱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
(2)若点E在平面ABD上的射影是三角形ABD的重心G,
①求直线EB与平面ABD所成角的余弦值;
②求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
您最近一年使用:0次
名校
4 . 如图,在直三棱柱
中,
,
,M是棱BC的中点,点P在线段A1B上.
![](https://img.xkw.com/dksih/QBM/2021/1/20/2640284804767744/2641067202428928/STEM/6f4b4802-a53c-43ee-8d69-ec1b24251c7f.png)
(1)若P是线段
的中点,求直线MP与平面
所成角的大小;
(2)若N是
的中点,平面PMN与平面CMN所成锐二面角的余弦值为
,求线段BP的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002c709e9fee8d477bddfe595cc760f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://img.xkw.com/dksih/QBM/2021/1/20/2640284804767744/2641067202428928/STEM/6f4b4802-a53c-43ee-8d69-ec1b24251c7f.png)
(1)若P是线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
(2)若N是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad62b8bb4df5dc2999d9b2a139c7d3ff.png)
您最近一年使用:0次
2021-01-21更新
|
410次组卷
|
2卷引用:江苏省扬州市2020-2021学年高二上学期期末数学试题
名校
解题方法
5 . 如图所示为一个半圆柱,
为半圆弧
上一点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/a4bf1bc1-bee0-46d6-83c9-71497aa77f09.png?resizew=124)
(1)若
,求四棱锥
的体积的最大值;
(2)有三个条件:①
;②直线
与
所成角的正弦值为
;③
.请你从中选择两个作为条件,求直线
与平面
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2395720e6d6aeb7efdcd8e921849acf4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/a4bf1bc1-bee0-46d6-83c9-71497aa77f09.png?resizew=124)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a65b94de267eb6858634181642c65c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c753cb1eb73fd8d136d00462970797.png)
(2)有三个条件:①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b0f78a8003789a66fa4cb38a84858c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411f35f7181f79573bbfab44ea77ff1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62871bb0dff211fc3bd80f9066c25b29.png)
您最近一年使用:0次
2021-01-02更新
|
1642次组卷
|
5卷引用:江苏省南京市秦淮中学2021届高三下学期期初学情调研数学试题
江苏省南京市秦淮中学2021届高三下学期期初学情调研数学试题T8联考八校2020-2021学年高三上学期第一次联考数学试题(已下线)专练11 空间向量与立体几何综合检测(A卷)-2021-2022学年高二数学上册同步课后专练(人版A版选择性必修第一册)2023版 湘教版(2019) 选修第二册 过关斩将 第2章 空间向量与立体几何山东省济宁市育才中学2022-2023学年高二上学期第一次学情检测数学试题
解题方法
6 . 如图,在平行四边形
中,
,
.点
,
分别在边
,
上,点
与点
,
不重合,
,
与
相交于点
,沿
将
翻折到
的位置,使二面角
为90°,
是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/9f4b11ba-bc10-4a49-a236-6b982631964f.png?resizew=265)
(1)请在下面两个条件:①
,②
中选择一个填在横线处,使命题
:若________,则
平面
成立,并证明.
(2)在(1)的前提下,当
取最小值时,求直线
与平面
所成角的正弦值.
![](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/ea4f5eec0addba78f2e0cdfb7ecc59a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.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/9d3f8b5c2dba20d42a8c551cd75a38fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.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/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bde5e96c203f387b2004b4abf5f839f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d048050a43df537a5e2b18fad0a4213e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/863ff2bbb8fa034fbaa47f5ccd9dbc55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/9f4b11ba-bc10-4a49-a236-6b982631964f.png?resizew=265)
(1)请在下面两个条件:①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e735a28578ba191da6d4f3b0f8e8729.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8915e8e775538d41debf1933102c6b86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e2cdaaf2a9bc82cba32adaa88534bdc.png)
(2)在(1)的前提下,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65277734669566578cbb7d690bb200fb.png)
您最近一年使用:0次
名校
7 . 如图,在四棱锥
中,
,
,
,
是
的中点,平面
平面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/2/2f7814e0-b1f3-4e46-ac7c-e51128837e44.png?resizew=214)
(1)证明:
;
(2)求直线
与平面
所成的角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60e19cb2532a1cc2c4368c587d2a4bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb2dd10731b99c0f4f89ee957f8a239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/2/2f7814e0-b1f3-4e46-ac7c-e51128837e44.png?resizew=214)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bbf25292ff28709ea1511db9bdda525.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
您最近一年使用:0次
2020-09-20更新
|
383次组卷
|
3卷引用:江苏省扬州市高邮市第一中学2020-2021学年高三上学期10月第二次学情检测数学试题
名校
解题方法
8 . 如图,在四棱锥
中,四边形
是菱形,
,
为正三角形,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/0784db5a-17a7-4a5f-a38f-844ef127849c.png?resizew=171)
(1)求直线
与平面
所成角的大小;
(2)若
,求二面角
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/0f4c1ba8858e3a21de22315e5a0b1353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fbfcae2cecc98e2d6c16dde6d3ec1c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/0784db5a-17a7-4a5f-a38f-844ef127849c.png?resizew=171)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f571a1aac46c6d0cf440c0ec2846bf9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb8540e2e3c2172094779f23f8f7148.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c5651e38293e0c42a7278af69fa53ae.png)
您最近一年使用:0次
2020-08-10更新
|
336次组卷
|
2卷引用:江苏省扬州市2019-2020学年高二下学期期末数学试题
名校
9 . 如图,将斜边长为
的等腰直角
沿斜边
上的高
折成直二面角
,
为
中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/2/e5f424df-b202-48d3-91b5-9644ed407202.png?resizew=287)
(1)求二面角
的余弦值;
(2)
为线段
上一动点,当直线
与平面
所成的角最大时,求三棱锥
外接球的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2031d209711b058f3d278ede3c1d33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd29cc627d76412c236aac6b29fa0fdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/2/e5f424df-b202-48d3-91b5-9644ed407202.png?resizew=287)
(1)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/486aa57b8d51f4bafedf8b31ed0b6452.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a424b50eaeafa6f302ffd95476cb86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500df0e782bb081e608f4bc1d576afcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5452197f58d5f1b8e377d0f79069fbc.png)
您最近一年使用:0次
2020-04-27更新
|
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10 . 如图,在长方体ABCD-A1B1C1D1中,E,F分别为AB,A1C的中点,且AA1=
AD.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/08f4169e-25d2-4848-a542-7d61c2787da1.png?resizew=194)
(1)求直线EF与平面ABCD所成角的大小;
(2)若EF=
AB,求二面角B-A1C-D的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/08f4169e-25d2-4848-a542-7d61c2787da1.png?resizew=194)
(1)求直线EF与平面ABCD所成角的大小;
(2)若EF=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c8b45edad1f59a7454739675fd2de55.png)
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