名校
1 . 如图,在直三棱柱
中,
,D是棱
的中点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/20/4fc19a80-bd69-49f7-bf56-58fe950a63a2.png?resizew=153)
(1)求证:
;
(2)求二面角
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/512cc5f78111d4592f6d843db6915f4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdd25759a3bb1f1283f93e7f2b1c5774.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/20/4fc19a80-bd69-49f7-bf56-58fe950a63a2.png?resizew=153)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/896d66e2af642634094aec5187f29a21.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98e0254c84e44728749b34c08c28ab1e.png)
您最近一年使用:0次
2023-04-19更新
|
150次组卷
|
18卷引用:北京市第十五中学2022届高三上学期期中考试数学试题
北京市第十五中学2022届高三上学期期中考试数学试题陕西省西安市重点高中2021-2022学年高三上学期第一次考试理科数学试题甘肃省天水市第一中学2021-2022学年高三上学期第一次考试 数学(理科)试题福建省厦门集美中学2022届高三12月月考数学试题天津市南开中学2017届高三第五次月考数学(文)试题2020届北京市密云区高三第二学期第二次阶段性测试数学试题云南省保山市第九中学2019-2020学年高二下学期期中考试数学(理)试题江苏省扬州市公道中学2020-2021学年高二下学期第二次学情测试数学试题云南省弥勒市第一中学2021-2022学年高二上学期第二次月考数学试题北京市海淀区首都师范大学附属中学2022届高三下学期三模练习数学试题陕西省安康市白河高级中学实验班2021-2022学年高二上学期期末理科数学试题(已下线)专题24 空间向量与空间角的计算-十年(2011-2020)高考真题数学分项(已下线)第七章 应用空间向量解立体几何问题拓展 专题二 平面法向量求法及其应用 微点1 平面法向量求法及其应用(一)【培优版】2015-2016学年河北冀州中学高一下首次月考理科数学卷吉林省吉化第一高级中学校2020-2021学年高二11月月考数学(理)试题黑龙江省双鸭山市第一中学2021-2022学年高二上学期期末数学试题甘肃省武威市凉州区2021-2022学年高二下学期期末考试数学(理)试题(已下线)专题11 空间角的计算(重点突围)(2)
2 . 如图,四棱锥
中,底面
是等腰梯形,
是
的中点,
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/23/e34032c1-8809-44c3-b1ab-3e5b97b46cfa.png?resizew=200)
(1)求证:
;
(2)若
,求二面角
的余弦值.
![](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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0434c0177ca5c88ec129bd4cc13f4a1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ee6e9d5c86a24a20896712415de537c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83640592853a53872d7af69c0cffc1bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3402ea855e2ae2dcd98f607bef4fdd6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c120a0dafabda27b56c7fa9877f2dbff.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/23/e34032c1-8809-44c3-b1ab-3e5b97b46cfa.png?resizew=200)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bafa8c14100a4f847b41b9148954116c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87261df80b82221732329b6ef3fdda7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78d07f36efcb9d203267d7c0409720cf.png)
您最近一年使用:0次
名校
3 . 在长方体
中,
,
,
点在侧面
上,且点
到直线
和
的距离相等;
①点
到直线
和
的距离为1时,
值为______ ;
②
的最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/effe791cf7422d81981f7f188e30dd76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7aeb2a8d1437eeb4482c3b6ad9f315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b7b7793d29d66dfdd89e7a6564a35c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a696a182fff038a86b2bbe8ca099442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
①点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a696a182fff038a86b2bbe8ca099442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0ff310aabd2282b539537ebed3f788.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0ff310aabd2282b539537ebed3f788.png)
您最近一年使用:0次
解题方法
4 . 如图,四棱锥
中,底面
是边长为2的正方形,
平面
,且
,
为
上的点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/72bbb20b-6def-4728-98b8-d4addc9a6fa0.png?resizew=127)
(1)求证:
;
(2)若
为
中点,求三棱锥
的体积.
![](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/0b80ee363635d73f601654339028daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/72bbb20b-6def-4728-98b8-d4addc9a6fa0.png?resizew=127)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4611ceb2a28f7a7e4d24266d7f99b22.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4a79fe6289d42058b781171fbd0b92e.png)
您最近一年使用:0次
解题方法
5 . 如图,四棱锥
的底面为直角梯形,
,
,
底面ABCD,且
,M是PB的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/686eb7d7-52e3-4884-a901-c08df6f40414.png?resizew=153)
(1)证明:
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4795ee1f96b430529934e2231b38885d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/586c2a453db84ec5f8a590fafe6e85f4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/686eb7d7-52e3-4884-a901-c08df6f40414.png?resizew=153)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37002ada5d194d4d062fa3285d7d9824.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01897779b865498122b66457e92f2266.png)
您最近一年使用:0次
2022-12-09更新
|
192次组卷
|
2卷引用:陕西省渭南市韩城市新蕾中学2021-2022学年高三上学期期中文科数学试题
6 . 已知四棱锥
的底面为直角梯形,
,
,
底面
,且
,
是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/9/85d4e3fe-f2cf-48ba-a16e-3ead387b1199.png?resizew=162)
(1)证明:
;
(2)求平面
与平面
的夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4795ee1f96b430529934e2231b38885d.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/586c2a453db84ec5f8a590fafe6e85f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/9/85d4e3fe-f2cf-48ba-a16e-3ead387b1199.png?resizew=162)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37002ada5d194d4d062fa3285d7d9824.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53bdef2e7a7929ad6190302ab44c46c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
您最近一年使用:0次
名校
7 . 三棱柱
中,棱长均为2,顶点
在底面
上的投影为棱
的中点,
为
的中点,
是
上的动点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71f2185273bf04c11118c7954f7ec822.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1264a2e3609e1c274acb89b5ea5019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24cfad1ba71a78d8f415335cde2f8c52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
A.三棱柱![]() | B.![]() ![]() ![]() |
C.![]() | D.异面直线![]() ![]() ![]() |
您最近一年使用:0次
2022-12-01更新
|
1101次组卷
|
4卷引用:湖南省株洲市第一中学2022届高三上学期期中数学试题
名校
8 . 如图,直三棱柱
的侧面
菱形,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/28/e3dcdef4-44d1-4174-9411-5ebc10603c5e.png?resizew=144)
(1)证明:
;
(2)设
为
的中点,
,记二面角
为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a3c1e54f0318d3fab1742308cad4bc8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/28/e3dcdef4-44d1-4174-9411-5ebc10603c5e.png?resizew=144)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f88a95ce9472b498b7e34098be8fc977.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d89ba4036a5d18ec4abed44d7fd8e89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969c099d3dd6683fc51febdeed5b3f51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f48c71528c4eeffccae978106e81bddc.png)
您最近一年使用:0次
2022-09-27更新
|
748次组卷
|
6卷引用:江苏省南京市中华中学2021-2022学年高三上学期期中数学试题
江苏省南京市中华中学2021-2022学年高三上学期期中数学试题福建省福州市闽江学院附属中学2023届高三上学期半期考试数学试题(已下线)专题9.9—立体几何—二面角1—2022届高三数学一轮复习精讲精练(已下线)第53讲 章末检测八湖南省长沙市长郡中学2022-2023学年高二上学期期末数学试题(已下线)期末测试卷04(测试范围:第1-5章)-2023-2024学年高二数学《重难点题型·高分突破》(人教A版2019选择性必修第二册)
名校
解题方法
9 . 如图,正方体
的棱长为2,F为
的中点.则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/29/d08d2799-a222-46e8-bdc3-44eea94a11b7.png?resizew=184)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/397bdc3f4a4d368848d8002e39f6bf5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/29/d08d2799-a222-46e8-bdc3-44eea94a11b7.png?resizew=184)
A.![]() |
B.直线AD与BF所成角的正切值为![]() |
C.平面![]() |
D.点C与点D到平面![]() |
您最近一年使用:0次
名校
解题方法
10 . 已知梯形ABCD如图(1)所示,其中AB//CD,∠BAD=90°,∠BCD=45°,
,过点A作BC的平行线交线段CD于M,点N为线段BC的中点.现将△DAM沿AM进行翻折,使点D到达点P的位置,且平面PAM⊥平面AMC,得到的图形如图(2)所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/369bac4f-9f52-47ae-bc09-79b801f99bfa.png?resizew=362)
(1)求证:AP⊥PN;
(2)若AB=2,求点C到平面PMN的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73e4150583bb730627d98e250153a704.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/369bac4f-9f52-47ae-bc09-79b801f99bfa.png?resizew=362)
(1)求证:AP⊥PN;
(2)若AB=2,求点C到平面PMN的距离.
您最近一年使用:0次
2022-02-27更新
|
535次组卷
|
5卷引用:山东省泰安市新泰市第一中学东校2021-2022学年高三上学期期中数学试题
山东省泰安市新泰市第一中学东校2021-2022学年高三上学期期中数学试题河南省名校联盟2021-2022学年高三上学期毕业班阶段性测试(三)文科数学试题河南省顶级中学2021-2022学年高三上学期阶段性测试(一)文科数学试题山西省怀仁市2022届高三上学期期末数学(文)试题(已下线)专题5.1 模拟卷(1)-2022年高考数学大数据精选模拟卷(新高考地区专用)