1 . 如图,正三棱柱 (底面是正三角形的直棱柱的底面边长为
,侧棱长为
,则
与侧面
所成角的正弦值为
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3卷引用:四川省资阳市2022-2023学年高二下学期入学检测(上学期期末质量监测)理科数学试题
四川省资阳市2022-2023学年高二下学期入学检测(上学期期末质量监测)理科数学试题四川省资阳市2022-2023学年高二上学期期末理科数学试题(已下线)第四章 立体几何解题通法 专题四 投影变换法 微点2 投影变换法(二)【培优版】
2 . 如图,多面体
中,四边形
为平行四边形,
,
,四边形
为梯形,
,
,
,
,
,平面
平面
.
(1)求证:
平面
;
(2)求直线
与平面
所成角的正弦值;
(3)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/921a71040d18df8b33bc41995675a586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18d5a164bf56f8fb92527ad78bc10ccf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dced11455b3e31a9090915f80a046fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddbb52f9b226b1db3f6f9f055948bd38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6370d6c626bdabf1fc694501ee6c714f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56512504254ab7f574a717dd6830fb33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10c6f6c2de974e341da82150b7373c16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d28c625d7ac6878957facc8274d459c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18d5a164bf56f8fb92527ad78bc10ccf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/24/5ad85ab5-0687-4a02-b424-7c57e08cf6ca.png?resizew=240)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31c34b18525831f3eda7bb90be0199b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a09d9d486b7f91ba933210dd013a7f2c.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
(3)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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2卷引用:四川省成都市成都市石室中学2022-2023学年高一下学期期末数学试题
名校
3 . 某商品的包装纸如图1,其中菱形
的边长为3,且
,
,
,将包装纸各三角形沿菱形的边进行翻折后,点E,F,M,N汇聚为一点P,恰好形成如图2的四棱锥形的包裹.
![](https://img.xkw.com/dksih/QBM/2021/11/1/2841764115521536/2844888435130368/STEM/57547906-c9e6-45d6-acdb-400ac2b3ac5b.png?resizew=292)
(1)证明
底面
;
(2)设点T为BC上的点,且二面角
的正弦值为
,试求PC与平面PAT所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d28bead45d13aea39356bbae4b7b1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c11cf3a79f306472abcd43f2c00bfe4.png)
![](https://img.xkw.com/dksih/QBM/2021/11/1/2841764115521536/2844888435130368/STEM/57547906-c9e6-45d6-acdb-400ac2b3ac5b.png?resizew=292)
(1)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)设点T为BC上的点,且二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd013aa647d5d82d414644f08d5c4c6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d172f55bc57ef5b5c2c1ad5b167440b2.png)
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6卷引用:四川省南充高级中学2021-2022学年高三上学期第三次月考数学(理)试题
四川省南充高级中学2021-2022学年高三上学期第三次月考数学(理)试题广东省佛山市顺德区2022届高三一模数学试题广东省佛山市顺德区2022届高三上学期10月普通高中教学质量检测(一)数学试题(已下线)热点08 立体几何-2022年高考数学【热点·重点·难点】专练(新高考专用)(已下线)考点33 直线与平面所成的角【理】-备战2022年高考数学典型试题解读与变式湖南省名校联考联合体2021-2022学年高二下学期3月联考数学试题
解题方法
4 . 如图,在等腰梯形ADEF中,
,
,
,
.在矩形ABCD中,
.平面
平面ABCD.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/15/0399315c-6f8d-4ee4-a992-e1ab80f8dd09.png?resizew=230)
(1)证明:
;
(2)求直线AF与平面CEF所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/402ab8c49c4dd2aaa0ef47164c7cac00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb55961fe96e155242d18d98e5c2261.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4901a7eda97d6a307db76c4fb196ba3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9367449a5847eade07e69f4feddcb027.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/15/0399315c-6f8d-4ee4-a992-e1ab80f8dd09.png?resizew=230)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a989aa942219970ec11ccd6ab186d69b.png)
(2)求直线AF与平面CEF所成角的大小.
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3卷引用:四川省成都市2022届高三第三次诊断考试理科数学试题
名校
解题方法
5 . 如图,在正三棱柱
中,
为棱
的中点,则直线
与平面
所成角的正弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc619a69a44195125790086010f3bdc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f96c673a2381f118ea2d3efc0bca1f3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/14/487415e0-c369-4cf5-8c1d-896cc10ef29e.png?resizew=121)
A.![]() | B.![]() | C.![]() | D.![]() |
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3卷引用:四川省绵阳市三台中学校2024届高三下学期第二学月测试文科数学试题
名校
6 . 点
在以
为直径的球
的表面上,且
,
,已知球
的表面积是
,设直线
和
所成角的大小为
,直线
和平面
所成角的大小为
,四面体
内切球半径为
,下列说法中正确的个数是( )
①
平面
;②平面
平面
;③
;④![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c00b0d47c1f33748059cee20eb744156.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f121eabff3c62c1a196d9ca5f6f83f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02dba908a505cff93e0b297d00b82a40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.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/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a351136b18bc7d3bd5122332772ab23b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ffc6952e988d04f22f0fb2f7f0ab7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d077f6da8b2c00b152d4679aa2ed7f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb1716ac3f2868fcc4d86fad1c1c48c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c00b0d47c1f33748059cee20eb744156.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-06-15更新
|
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2卷引用:四川省成都市第七中学2024届高三零诊模拟考试数学(理)试题
名校
解题方法
7 . 三棱锥
中,面
面
,
,
,
,
,
,
为射线
上一动点,求直线
与面
所成角的正弦的最大值为______________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4357d5744046d4d44abb09e1ee35fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17580410bf63dba4fe164265afaac4cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7788830ed1cb3b9c5988f70f43595f2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f26ad70d2b3aac8604834d57dfc59bb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60bb2e3631f46fc8a24595efce01a92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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7卷引用:四川省南充高级中学2022-2023学年高三上学期第4次模拟测试数学理科试题
四川省南充高级中学2022-2023学年高三上学期第4次模拟测试数学理科试题四川省南充高级中学2022-2023学年高三上学期第四次月考数学试题(理)云南省昆明市官渡区艺卓中学2023届高三下学期第二次月考数学试题(已下线)8.6.2直线与平面垂直的判定定理(第1课时)(精讲)(2)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)(已下线)第八章立体几何初步章末题型大总结(精讲)(2)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)(已下线)13.2.4 平面与平面的位置关系 (2)(已下线)专题10 空间角与空间距离的综合(2) - 期中期末考点大串讲
名校
8 . 如图,在棱长为2的正方体
中,
,
,
,
,
均为所在棱的中点,则下列结论正确的是( )
![](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/a0ed1ec316bc54c37c4286c208f55667.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/26/5bd39d5b-13d2-4965-8fb0-8f3d167e89c8.png?resizew=160)
A.棱![]() ![]() ![]() |
B.设点![]() ![]() ![]() ![]() ![]() ![]() ![]() |
C.过点![]() ![]() ![]() ![]() |
D.三棱锥![]() ![]() |
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2卷引用:四川省宜宾市第四中学校2023-2024学年高二上学期12月月考数学试题
9 . 如图,已知正方体
的棱长为2,M、N分别是
、
的中点,平面
与棱
的交点为E,点F为线段
上的动点,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/2022/5/14/2978811363450880/2980694953222144/STEM/4803c5e0-6712-46c4-a632-58ba882b98db.png?resizew=184)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1859959fdb4c5edd8056893f94a10a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e74395b07e8153a0ef0bbcb5881013f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e3334853138fb74687d66b1e45f2fd9.png)
![](https://img.xkw.com/dksih/QBM/2022/5/14/2978811363450880/2980694953222144/STEM/4803c5e0-6712-46c4-a632-58ba882b98db.png?resizew=184)
A.![]() | B.三棱锥![]() ![]() |
C.若![]() ![]() ![]() ![]() | D.若![]() ![]() ![]() ![]() |
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6卷引用:四川省眉山市仁寿县仁寿第一中学校南校区2023-2024学年高二上学期期中数学试题
四川省眉山市仁寿县仁寿第一中学校南校区2023-2024学年高二上学期期中数学试题重庆市主城区2022届高三下学期三诊数学试题(已下线)第03讲 空间直线、平面的平行 (练)(已下线)湖南省怀化市2022-2023学年高三上学期期末数学试题变式题11-16(已下线)人教A版高二上学期【期中押题卷01】(测试范围:1.1~3.1)(原卷版)(已下线)第五章 破解立体几何开放探究问题 专题一 立体几何存在性问题 微点3 立体几何存在性问题的解法综合训练【基础版】
10 . 已知四棱锥
的底面ABCD为梯形,
,
,
,
,
为正三角形,平面
平面ABCD,E,F分别为PA,PB的中点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee8ef58be8708144272538ee427fb92c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0d7095ddd69d6ceaf1065b1bc2c79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84e0b7d845cbceccd3e76ca461fcc534.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
A.![]() ![]() |
B.PD与平面ABCD所成角的正弦值为![]() |
C.![]() |
D.四棱锥![]() ![]() |
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