名校
1 . 如图,在正三棱柱
中,
,异面直线
与
所成角的大小为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/d9016209-25ae-4175-b147-4d5fcd5b4341.png?resizew=193)
(1)求正三棱柱
的体积;
(2)求直线
与平面
所成角的大小.(结果用反三角函数值表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55a2310cbba5e050488cd9296eb195d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/d9016209-25ae-4175-b147-4d5fcd5b4341.png?resizew=193)
(1)求正三棱柱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac61c24f99a4e466f1e2ea011893866.png)
您最近一年使用:0次
2022-11-08更新
|
375次组卷
|
10卷引用:上海市金山中学2022-2023学年高二下学期期末数学试题
上海市金山中学2022-2023学年高二下学期期末数学试题(已下线)期末真题必刷压轴60题(22个考点专练)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(沪教版2020必修第三册)上海市实验学校2022届高三下学期开学考试数学试题上海市徐汇区2022届高三下学期二模数学试题(已下线)专题15 立体几何(模拟练)-2(已下线)第19讲 立体几何初步-1(已下线)第19讲 立体几何初步-1(已下线)专题10立体几何初步必考题型分类训练-2上海市七宝中学2022届高三下学期3月月考数学试题上海市闵行(文绮)中学2024届高三上学期期中数学试题
2 . 已知圆锥的底面半径为3,沿该圆锥的母线把侧面展开后可得到圆心角为π的扇形.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/3e2bc6fd-dcd3-4f31-83d4-ceef96803cc5.png?resizew=117)
(1)求该圆锥的高;
(2)求圆锥的母线与底面所成角的大小.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/3e2bc6fd-dcd3-4f31-83d4-ceef96803cc5.png?resizew=117)
(1)求该圆锥的高;
(2)求圆锥的母线与底面所成角的大小.
您最近一年使用:0次
解题方法
3 . 如图,四面体ABCD中,AD、BD、CD两两垂直,且
,过AB上的动点E(不同于A、B两点)作平行于AD、BC的平面,分别交棱BD、CD、AC于F、G、H三点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/0a17af30-add1-4acd-8ac9-b209d670f112.png?resizew=263)
(1)求异面直线EF与AC所成角的大小;
(2)若E为AB中点,求点E到直线CD的距离;
(3)若直线CE与平面ABD所成角的正切值为
,求此时直线AB与平面CDE所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/928fd3522d2c6ad710eccb3dc5e21146.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/0a17af30-add1-4acd-8ac9-b209d670f112.png?resizew=263)
(1)求异面直线EF与AC所成角的大小;
(2)若E为AB中点,求点E到直线CD的距离;
(3)若直线CE与平面ABD所成角的正切值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
您最近一年使用:0次
名校
4 . 在四棱锥
中,底面ABCD是矩形,
为BC的中点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/28/f85978d3-f058-46f4-b620-e768640abe5f.png?resizew=191)
(1)证明:
平面ABCD;
(2)若PC与平面PAD所成的角为30°,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6be2b61f4a38e2ee2c1a01e00b3ae6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/676aab822f6b92aaf84cd688acb7050d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65c929fed1d514a112dab659d514dd9b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/28/f85978d3-f058-46f4-b620-e768640abe5f.png?resizew=191)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb18c7c5391647214d4da31a88202d2.png)
(2)若PC与平面PAD所成的角为30°,求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f09cf4f12bcfc80a91ebcbfc6e372ae6.png)
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2022-10-24更新
|
357次组卷
|
2卷引用:河北省新乐市第一中学2022-2023学年高二上学期第一次月考数学试题
名校
5 . 如图,在三棱锥
中,
,
,
,
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/24/6aaf1f70-a95e-4a8a-970c-0fbf28e85ac1.png?resizew=188)
(1)证明:
平面ABC;
(2)若E是棱AC上的动点,当
的面积最小时,求SC与平面SDE所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/145162491eef96e8ecdf1c0ea757cb87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/214bfde0e33195dcea96e6aa22b271e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/189c5df57466c011fe2d98f1540af294.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f39bd910a7380c1f72e90537b875108.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/289d7a880379d6060065c829b45b0ed6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/24/6aaf1f70-a95e-4a8a-970c-0fbf28e85ac1.png?resizew=188)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/660f8143dbe1d2314469293efba6e98f.png)
(2)若E是棱AC上的动点,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b09c565f36db58a4482b6d8621aaae5.png)
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2022-10-20更新
|
348次组卷
|
4卷引用:黑龙江省哈尔滨市第九中学校2022-2023学年高二10月月考数学试题
黑龙江省哈尔滨市第九中学校2022-2023学年高二10月月考数学试题(已下线)陕西省宝鸡市金台区2022-2023学年高二上学期期末理科数学试题甘肃省武威第六中学2022-2023学年高三上学期第三次过关考试理科数学试题(已下线)8.6.2直线与平面垂直的性质定理(第2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)
名校
6 . 在三棱锥
中,
底面
,
,
,
,
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/15/eb13ff7c-f56a-45f3-9c4e-333a76f92d79.png?resizew=155)
(1)证明:
;
(2)求
与平面
所成的角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddfe0ccf24d760c77535a70c92dad145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9915fb075192de0c7157a4787675254.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/15/eb13ff7c-f56a-45f3-9c4e-333a76f92d79.png?resizew=155)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/712f7375b4ede5f75c0d81870c0f86af.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
您最近一年使用:0次
2022-10-13更新
|
564次组卷
|
5卷引用:广东省普宁市华侨中学2022-2023学年高二上学期期中数学试题
7 . 在长方体
-
中(如图),
,
,点
是棱
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/15/28e664ec-6b49-4070-8139-c6a12a311ac3.png?resizew=172)
(1)《九章算术》中,将四个面都是直角三角形的四面体称为鳖臑.试问四面体
是否为鳖臑?并说明理由;
(2)求四面体
的体积;
(3)求直线CD与平面DED1所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94aad4c2109f60fcbf5488a545b16c6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c0b612af0e0719e78c620a0b9957a4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c80ed025db049a0cd6a860e22c3f7e09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/634e116ca7402e925c9af92a64045053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/15/28e664ec-6b49-4070-8139-c6a12a311ac3.png?resizew=172)
(1)《九章算术》中,将四个面都是直角三角形的四面体称为鳖臑.试问四面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7b9894ec3bf6f6ba74bb70d3100ad9.png)
(2)求四面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7b9894ec3bf6f6ba74bb70d3100ad9.png)
(3)求直线CD与平面DED1所成角的大小.
您最近一年使用:0次
2022-10-11更新
|
132次组卷
|
2卷引用:上海市奉贤区致远高级中学2022-2023学年高二上学期10月月考数学试题
解题方法
8 . 如图,在四棱锥
中,
底面
,且
,
,
,
,M为棱
上一点.
![](https://img.xkw.com/dksih/QBM/2022/9/26/3074962476498944/3077494980755456/STEM/8111400f7f9e47aeb50e95560c1f5418.png?resizew=204)
(1)若
,证明:M为
的中点;
(2)求
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41d5a42a8509e15a0dca186f06be73dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6281306726065e7075c579b9b66537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0d7095ddd69d6ceaf1065b1bc2c79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a755edadca4e4fc27fd49559b8d691ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/2022/9/26/3074962476498944/3077494980755456/STEM/8111400f7f9e47aeb50e95560c1f5418.png?resizew=204)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51584d41544d9c0fb00f5f14d4c7cad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
您最近一年使用:0次
9 . 如图,在四棱锥
中,底面
为矩形,
平面
,E为
的中点.
![](https://img.xkw.com/dksih/QBM/2022/8/31/3056505926647808/3065510018088960/STEM/85509ed4c9e04547872bb0a1d8a354ed.png?resizew=237)
(1)证明:
平面
;
(2)设
,三棱锥
的体积为
,求
与平面
所成角的正弦值.
![](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/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://img.xkw.com/dksih/QBM/2022/8/31/3056505926647808/3065510018088960/STEM/85509ed4c9e04547872bb0a1d8a354ed.png?resizew=237)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30067b7b236d17af8a462f96a58d11bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e2da608b66c9aee03e2503388ba4fd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1412048bf1422752f89049f5521095a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddfe0ccf24d760c77535a70c92dad145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802e162b98c280720fcb909cf392fda3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
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2022-09-13更新
|
727次组卷
|
3卷引用:广西南宁市2022-2023学年高二上学期开学教学质量调研数学试题
广西南宁市2022-2023学年高二上学期开学教学质量调研数学试题甘肃省平凉市第二中学2022-2023学年高二上学期期末考试(延考)数学试题(已下线)第04讲 空间直线、平面的垂直 (高频考点—精练)
10 . 如图,在四棱锥
中,
面
,
,
为线段
的中点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/4/b7f309b7-ea0d-4494-becb-fefdc6bc8a33.png?resizew=204)
(1)证明:
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)求
与平面
所成的角的正切值.
![](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/7222b471c91405a7a3120165fcff8c8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a23f01af749100e1888bba06268843db.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/4/b7f309b7-ea0d-4494-becb-fefdc6bc8a33.png?resizew=204)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
您最近一年使用:0次