1 . 如图,已知菱形
所在平面与矩形
所在平面相互垂直,且
,
是线段
的中点,
是线段
上的动点.
与
所成的角是否为定值,试说明理由;
(2)若二面角
为
,求四面体
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd4b93d7abcfc4c3df48f03aa969c17f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d5d1764c94af4b851e602135609108e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a424b50eaeafa6f302ffd95476cb86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
(2)若二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147310251a463539f66374c1f452fb67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8379ddbd4f02ccfa502592cc4eeae4f1.png)
您最近一年使用:0次
2022-06-14更新
|
1800次组卷
|
10卷引用:重庆市杨家坪中学2020-2021学年高一下学期第二次月考数学试题
重庆市杨家坪中学2020-2021学年高一下学期第二次月考数学试题河南省开封市2019-2020学年高一上学期期末数学试题江苏省连云港市海头高级中学2019-2020学年高一下学期第五次考试数学试题(已下线)专题25 二面角相关问题训练-【重难点突破】2021-2022学年高一数学常考题专练(人教A版2019必修第二册)(已下线)模块三 专题8(立体几何初步)拔高能力练(北师大版)(已下线)模块三 专题7 大题分类练(立体几何初步)拔高能力练(人教A)(已下线)模块三 专题8大题分类练(立体几何初步)拔高能力练(苏教版)福建省龙岩市上杭县第一中学2023-2024学年高一下学期5月月考数学试卷四川省巴中市恩阳区2022-2023学年高二下学期期中文科数学试题(已下线)第二章 立体几何中的计算 专题六 空间定值问题 微点6 空间定值问题综合训练【培优版】
名校
2 . 在60°二面角的一个面内有一个点,若它到二面角的棱的距离是10,则该点到另一个面的距离是______ .
您最近一年使用:0次
2021-10-20更新
|
233次组卷
|
2卷引用:重庆市乌江新高考协作体2023-2024学年高一下学期5月期中数学试题
名校
解题方法
3 . 如图:今年五一,小明去某游乐园玩“大摆锤”,他坐在
处,“大摆锤”启动后,主轴
在平面
内绕点
左右摆动,平面
与水平地面垂直,
摆动的过程中,点
在平面
内绕点
做圆周运动,并且始终保持
,
.已知
,在“大摆锤”启动后,下列结论中正确的有( )
![](https://img.xkw.com/dksih/QBM/2021/6/5/2736615037394944/2803263199068160/STEM/7445115a-b0f7-4f3d-873a-e236dac5d5f2.png?resizew=351)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a79ef827360981a3cbcbf5808ee5db9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16acea101c98a280a70c2fa0b2c04dd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc7007942ad901db60029e915560cfe2.png)
![](https://img.xkw.com/dksih/QBM/2021/6/5/2736615037394944/2803263199068160/STEM/7445115a-b0f7-4f3d-873a-e236dac5d5f2.png?resizew=351)
A.点![]() |
B.线段![]() |
C.直线![]() ![]() ![]() |
D.![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
名校
4 . 如图,在平行六面体
中底面
是边长为
的菱形,
,
为
的中点,
为
上一点,
平面
,
.
![](https://img.xkw.com/dksih/QBM/2021/6/5/2736615037394944/2803263199297536/STEM/7d0879f4-1678-4340-903c-795feba051d5.png?resizew=257)
(I)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c02ffbf0d9a3a73b896732082710c2f.png)
(II)若
,
,①求证:该平行六面体为直四棱柱;②求二面角
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d8eb4a9f462ca0c1d49c3fe91e720d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f306ff6d237cd9d847aa109acf9333d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70db40c42655327adee01caedfc9d50c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc55d282b5786fc0ac1fcf7e706e3a1.png)
![](https://img.xkw.com/dksih/QBM/2021/6/5/2736615037394944/2803263199297536/STEM/7d0879f4-1678-4340-903c-795feba051d5.png?resizew=257)
(I)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c02ffbf0d9a3a73b896732082710c2f.png)
(II)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55a2310cbba5e050488cd9296eb195d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e5c289b8aabdbfba95c7fd1e1842f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05d2c1b3fd7524383736c72f4c0f1f27.png)
您最近一年使用:0次
名校
5 . 如图,四棱锥
面
面
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/cacd822b-141d-4be7-9bc6-5a1d40c0b358.png?resizew=208)
(1)证明:
及
面
;
(2)求二面角
的余弦值;
(3)线段
上一动点E,设直线
与面
所成角为
,则E在何处时,
的值最大?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a061d9c4c30ef4aed324be52ef2f60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/967d47ca1cbdaaf30baf00c79d8503fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c593ebdb2f1934a0cb56f8c44f454f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d66301f26e6d528ab482d753d90e9931.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/cacd822b-141d-4be7-9bc6-5a1d40c0b358.png?resizew=208)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eee8e3e106015df4da241290765dc828.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5dd496ee0c1170ef6dcc48266ee444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f571a1aac46c6d0cf440c0ec2846bf9.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d294d69caac577339f11f477b2047e.png)
(3)线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c593ebdb2f1934a0cb56f8c44f454f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de7d5ef3a3d9a03be91135fc426d57cc.png)
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名校
6 . 在矩形
中,
点
分别在
上,且
.沿
将四边形
翻折至四边形
,点
平面
.
![](https://img.xkw.com/dksih/QBM/2021/7/8/2759900325306368/2777778682167296/STEM/055aee96639749ab9bfe87ca48f553d5.png?resizew=482)
(1)求证:
平面
;
(2)
四点是否共面?给出结论,并给予证明;
(3)在翻折的过程中,设二面角
的平面角为
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/554f455de1180a8a6245b24ec9480a7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c4cd264c97c1f261229925cc5a6761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cf34605ceb15a969300a1121fc74f22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/946c16d99496d31ce4d87301a4793393.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c76e6c67644b8bad9bfe11c7ec3081d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7829855159327b2a87c3a424b3f7134a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a28d6477c85c5a4ac410a884e92fbe53.png)
![](https://img.xkw.com/dksih/QBM/2021/7/8/2759900325306368/2777778682167296/STEM/055aee96639749ab9bfe87ca48f553d5.png?resizew=482)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f235281692aa274a672d57fc400bd45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b12cffc313a181f666e3fc8e66b6f59.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45a8c036e6d2c152d0a16dbbe2bff905.png)
(3)在翻折的过程中,设二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1b43ff5a9a70210b4017c4c38b4258c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc24d605ad707ad0e76059d8a31f50d3.png)
您最近一年使用:0次
2021-08-02更新
|
541次组卷
|
2卷引用:重庆市第八中学校2021-2022学年高一下学期第二次月考数学试题
7 . 如图1,在边长为2的正方形
中,
,
分别是
,
的中点,将
,
,
分别沿
,
,
折起,使
,
,
重合于点
,得到如图2所示的三棱锥
,则下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/0883f6e5-3887-47c7-88ee-53e2db6e4b5e.png?resizew=304)
![](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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5df7626240940eb340420a605e95aeee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2ea13010e2399194be2a681310543e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16fd1bc6147d69777b26a35d48522f7e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/0883f6e5-3887-47c7-88ee-53e2db6e4b5e.png?resizew=304)
A.![]() |
B.平面![]() ![]() |
C.二面角![]() ![]() |
D.点![]() ![]() ![]() |
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名校
8 . 正方体
的棱长为2,则平面
与平面
所成角为______ ;平面
与平面
的距离为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaacef9fef191e506177936117123cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7935fe3125f247b7bea4f065ce9ad985.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e86eec8526479272d15bb3b171a46de0.png)
您最近一年使用:0次
9 . 如图,在平面四边形
中,
分别为
的中点,
为
与
交点,
与
分别交于
,将图形沿虚线
折叠,使得
三点重合为
,得到一个三棱锥
.在三棱锥
中,下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/2021/5/22/2726618002399232/2763370522845184/STEM/df31526e317443df95e88d3076b96780.png?resizew=278)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c0e1069db68c905fa3ef63344e50847.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/481e426224c3a3ce9bb5a731eed81c40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a26260c10afb34f543d86b67898134f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc6c310fa3c3363a42fe869a70bcc080.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28855a0db693584aabac1df99dfade3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bd7177a1af632169e5f4740c1b50d6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bd7177a1af632169e5f4740c1b50d6b.png)
![](https://img.xkw.com/dksih/QBM/2021/5/22/2726618002399232/2763370522845184/STEM/df31526e317443df95e88d3076b96780.png?resizew=278)
A.直线![]() ![]() | B.直线![]() ![]() |
C.二面角![]() ![]() | D.直线![]() ![]() ![]() |
您最近一年使用:0次