2023高三·全国·专题练习
名校
解题方法
1 . 如图,三棱锥
中,已知
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f2c649fe991df124faaef9dc8876c22.png)
.则二面角
的正弦值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f2c649fe991df124faaef9dc8876c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9cdf7a3a8e50eb121e979bd478fb112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b796bbaeb8450404c2d146283562006e.png)
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2 . 如图,在多面体ABCDEFG中,四边形ABCD是边长为3的正方形,EG∥AD,DC∥FG,且EG=AD,DC=3FG,DG⊥面ABCD,DG=2,N为EG中点.
(1)若M是CF中点,求证:MN∥面CDE;
(2)求二面角N-BC-F的正弦值.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/25/faad29ac-1fe4-413f-ac5f-af4dfe0030f1.png?resizew=177)
(1)若M是CF中点,求证:MN∥面CDE;
(2)求二面角N-BC-F的正弦值.
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3 . 如图,在四棱锥
中,底面ABCD是矩形.已知
,
,
,
,
.
(1)证明
平面
;
(2)求异面直线
与
所成的角的正切值;
(3)求二面角
的正切值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b80ee363635d73f601654339028daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6281306726065e7075c579b9b66537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e12bfde565540f059dd27ea47dfaa7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/20/3c18a097-b3a7-4f3d-8afc-0e4c4d6c9bf6.png?resizew=142)
(1)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5dd496ee0c1170ef6dcc48266ee444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(3)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/053af8641980763a7f0e77beefe0712d.png)
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4 . 如图,在四棱锥
中,
平面
,
,且
,
,
,
,
,
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/4bed93ab-2ffe-40f1-939a-e42e68f79df4.png?resizew=229)
(1)求证:
∥平面
;
(2)求平面
与平面
夹角的余弦值.
![](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/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c1ac2e11788860424508ea9e80cf89d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc532cfe64300cb3da9e04a307c957a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/4bed93ab-2ffe-40f1-939a-e42e68f79df4.png?resizew=229)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/218054144a13435580cd132b9459546c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
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4卷引用:天津市和平区2022-2023学年高二上学期期末数学试题
天津市和平区2022-2023学年高二上学期期末数学试题(已下线)高二数学开学摸底考(天津专用)-2023-2024学年高中下学期开学摸底考试卷湖北省武汉市新洲区第一中学2022-2023学年高二下学期开学收心考试数学试题广东省广州市一中2023-2024学年高二上学期10月月考数学试题
5 . 如图,在单位正方体
中,点P是线段
上的动点,给出以下四个命题:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/d0c52d24-34c5-4191-9a90-fb7936284956.png?resizew=186)
①直线
与直线
所成角的大小为定值;
②二面角
的大小为定值;
③若Q是对角线
,上一点,则
长度的最小值为
;
④若R是线段BD上一动点,则直线PR与直线
有可能平行.
其中真命题有______ (填序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/d0c52d24-34c5-4191-9a90-fb7936284956.png?resizew=186)
①直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ad3a1ea6790177130e16c2124984087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
②二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d286cc307396ae72d71f98503b942f7e.png)
③若Q是对角线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7daf1bd6cc2e6229afc02131d714f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18483c9c195ecd922772527fa85c0fcb.png)
④若R是线段BD上一动点,则直线PR与直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
其中真命题有
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2卷引用:天津市河东区2022-2023学年高二上学期期中数学试题
名校
解题方法
6 . 以等边三角形ABC为底的两个正三棱锥
和
内接于同一个球,并且正三棱锥
的侧面与底面ABC所成的角为
,记正三棱锥
和正三棱锥
的体积分别为
和
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7edc2e23df190c35aafad93410a05b8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7edc2e23df190c35aafad93410a05b8a.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/625dbbd5d5f2617b7c53acdb936b1d07.png)
A.1 | B.![]() | C.![]() | D.![]() |
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8卷引用:信息必刷卷05(天津专用)
(已下线)信息必刷卷05(天津专用)江苏省南京市金陵中学2021-2022学年高三上学期网课质量检测数学试题(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(已下线)专题11 空间几何体-备战2022年高考数学(理)母题题源解密(全国甲卷)(已下线)专题14 空间几何体-备战2022年高考数学(文)母题题源解密(全国甲卷)广西贵港市2023届高三毕业班上学期12月模拟考试数学(理)试题广东实验中学2023届高三第三次阶段考试数学试题广西壮族自治区贵港市2023届高三上学期12月模拟考试数学(文)试题
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7 . 如图,在四棱锥
中,底面
是边长为2的正方形,侧棱![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
底面
,
,
是
的中点,作
交PB于点
.
![](https://img.xkw.com/dksih/QBM/2022/9/27/3075522905776128/3081229997236224/STEM/01fb833bf9d14b5885c78f4b54747a23.png?resizew=213)
(1)求三棱锥
的体积;
(2)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
平面
;
(3)求平面
与平面
的夹角的大小.
![](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/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1633988fd62a652de726ee92a917b52d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43d4c42112e0a22f240ce2ae432e5b4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a4a6a1e70241d600bc6c104313eac61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/2022/9/27/3075522905776128/3081229997236224/STEM/01fb833bf9d14b5885c78f4b54747a23.png?resizew=213)
(1)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8ee3afb7e2c8943673449a1b136faf0.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1633988fd62a652de726ee92a917b52d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebce46aeb97373353179e5669365fa4a.png)
(3)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/955e030d649a3c7885071b4bf849993c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f571a1aac46c6d0cf440c0ec2846bf9.png)
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6卷引用:天津市五校联考2021-2022学年高一下学期期末数学试题
天津市五校联考2021-2022学年高一下学期期末数学试题天津市新四区示范校2022-2023学年高二下学期期末联考数学试题(已下线)空间直线、平面的垂直(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)(已下线)专题强化训练四 直线与平面所成的角、二面角的平面角的常见解法(2)-《考点·题型·技巧》(已下线)高一下学期期末数学考试模拟卷02-2022-2023学年高一数学下学期期中期末考点大串讲(人教A版2019必修第二册)
名校
解题方法
8 . 如图,在直四棱柱
中,侧棱
的长为3,底面
是边长为2的正方形,
是棱
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/b5896a46-4235-4722-a12b-84144b5c7a16.png?resizew=159)
(1)证明:
平面
;
(2)求平面
与平面
的夹角的正切值;
(3)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/b5896a46-4235-4722-a12b-84144b5c7a16.png?resizew=159)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f11f1840eb8b17e7b07c3fe7e987a9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb5a463a03c549b0dba6d90e7f16a2af.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb5a463a03c549b0dba6d90e7f16a2af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(3)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb5a463a03c549b0dba6d90e7f16a2af.png)
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2023-01-03更新
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6卷引用:天津市和平区2022-2023学年高三上学期期末数学试题
名校
9 . 如图,以等腰直角
的斜边BC上的高AD为折痕把
和
折成互相垂直的两个平面,若
,得出如下结论:
![](https://img.xkw.com/dksih/QBM/2022/7/7/3017592516059136/3021536568262656/STEM/0e8eb99e1f114d5d90799950cd51a7f7.png?resizew=294)
①![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70734a8e672376bb0bd1522e229f86a2.png)
②三棱锥
是正三棱锥
③二面角
的大小为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
④三棱锥
的外接球的表面积为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cf1f865bafd4a820406d336d99f8091.png)
其中所有正确结论的序号是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://img.xkw.com/dksih/QBM/2022/7/7/3017592516059136/3021536568262656/STEM/0e8eb99e1f114d5d90799950cd51a7f7.png?resizew=294)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70734a8e672376bb0bd1522e229f86a2.png)
②三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4357d5744046d4d44abb09e1ee35fcb.png)
③二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ec2524be492bca0d1566bf848066f10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
④三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4357d5744046d4d44abb09e1ee35fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cf1f865bafd4a820406d336d99f8091.png)
其中所有正确结论的序号是
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2卷引用:天津市第七中学2022-2023学年高三上学期期中模拟数学试题
解题方法
10 . 如图,已知三棱锥
的各棱长均为2,则平面
和平面
所成角的余弦值为:________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/11/794f292a-6e37-43d7-a754-e8dbf52b4dc5.png?resizew=168)
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2卷引用:天津市求真高级中学2021-2022学年高一下学期期末数学试题