1 . 某几何体的三视图如图所示,则该几何体中的最长棱长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/8417088a-370a-4a6b-bd99-cd764f35f391.png?resizew=272)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/8417088a-370a-4a6b-bd99-cd764f35f391.png?resizew=272)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-04-17更新
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386次组卷
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4卷引用:2019届浙江省衢州市衢州二中高三下学期高考适应性考试数学试题
2019届浙江省衢州市衢州二中高三下学期高考适应性考试数学试题浙江省衢州二中2020届高三(下)适应性数学试卷题(已下线)押第6题三视图-备战2021年高考数学临考题号押题(浙江专用)(已下线)2021年高考数学(文)押题预测卷(新课标III卷)03
名校
解题方法
2 . 已知某几何体的三视图如图所示,若该几何体的体积为
,则
等于( )
![](https://img.xkw.com/dksih/QBM/2020/4/12/2439967503466496/2440057720012800/STEM/4494757540ad493e9e475242f1c1f06a.png?resizew=396)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be93400a40a8ab44be97c3804822f19b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/2020/4/12/2439967503466496/2440057720012800/STEM/4494757540ad493e9e475242f1c1f06a.png?resizew=396)
A.4 | B.5 | C.6 | D.7 |
您最近一年使用:0次
2020-04-12更新
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175次组卷
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2卷引用:金科大联考2019-2020学年高三10月质量检测数学文科试题
3 . 某几何体的三视图如图所示,则该几何体的体积是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/01cc33c3-a1b8-422c-aeeb-369ca4e2fd8e.png?resizew=237)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/01cc33c3-a1b8-422c-aeeb-369ca4e2fd8e.png?resizew=237)
A.![]() | B.![]() | C.4 | D.8 |
您最近一年使用:0次
名校
解题方法
4 . 如图,四棱锥
的底面是边长为2的正方形,
为
的中点,
面
,且
,动点
在以
为球心半径为1的球面上运动,点
在面
内运动,且
,则
长度的最小值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/13/16b6ea31-0d96-411f-aed3-6c3e0f715d3e.png?resizew=258)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b61346bd4091070ba84a4046f87f365.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4d14c6959273338a048b023805cce80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b4f4fb22f03557c71cf668cfe9ab9fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ef70a6b2f9fefb69743149df0e2357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c3be72f3f0fc7f5c03660519f18a304.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/13/16b6ea31-0d96-411f-aed3-6c3e0f715d3e.png?resizew=258)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-04-06更新
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1332次组卷
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8卷引用:浙江省嘉兴市七校2019-2020学年高二上学期期中联考数学试题
浙江省嘉兴市七校2019-2020学年高二上学期期中联考数学试题四川省内江市资中县第二中学2020-2021学年高二上学期11月月考数学文科试题四川省内江市资中县第二中学2020-2021学年高二上11月月考理科试题(已下线)专练30 期中综合检测卷(B卷)-2021-2022学年高二数学上册同步课后专练(人版A版选择性必修第一册)辽宁省部分中学2021-2022学年高三上学期期末检测数学试题湖南师范大学附属中学2022-2023学年高三上学期月考(六)数学试题湖南省长沙市雅礼中学2022-2023学年高一下学期5月第三次月考数学试题(已下线)第三章 空间轨迹问题 专题六 立体几何轨迹中的范围、最值问题 微点1 立体几何轨迹中的范围、最值问题【培优版】
5 . 如图,四棱锥
中,平面
平面
,若
,四边形
是平行四边形,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/25/f4ab1ce9-f538-4380-97f7-a4b7e428fb04.png?resizew=160)
(1)求证:四边形
是菱形;
(2)若点
在线段
上,且
平面
,
,
,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c753cb1eb73fd8d136d00462970797.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf9a6db3571fa57bfa2d5e4d44c51b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500df0e782bb081e608f4bc1d576afcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ee4fa5989767bc09c9af4123521c24e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c51c25b65a37b676ae3c3b71c29f9b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/25/f4ab1ce9-f538-4380-97f7-a4b7e428fb04.png?resizew=160)
(1)求证:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/601d9ff4d1bac8f0df44c68d71edd841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae8768996ca9a0f2c5d9a19abbd54df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ec435aa1401dbce7863b531bf2f3e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5336ad76763e018ceaec8015b2ca27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/820a55066be63da11d346175942b09aa.png)
您最近一年使用:0次
6 . 如下图,梯形
中,
,
,
,
,将
沿对角线
折起.设折起后点
的位置为
,并且平面
平面
.给出下面四个命题:
①
;②三棱锥
的体积为
;③
平面
;
④平面
平面
.其中正确命题的序号是______ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5679a74e9f5506266ab627894ab03243.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9060f03b9ee41d70d135b1e1a8902ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926bf61be3e223c11ad3f007901abf8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac7856b843caf384fca612ce663f21c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fe052786101dfcc941480919eb2cecc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95b78d94be9cf126522b58204b320bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeb4c6e9a723aa843e6ba62d7c1a3a6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f30533da2e1d2a958dc906c37eba9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd148d264bc9043396f777523e907aa.png)
④平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53d138354c4e021ac8ae2a2fb176ca14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff8c968d4a1798957d5134b45f5049d0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/b868d35d-243f-4a12-8211-4f883d0234e0.png?resizew=383)
您最近一年使用:0次
2020-04-06更新
|
377次组卷
|
4卷引用:浙江省金兰教育合作组织2019-2020学年高二上学期期中联考数学试题
浙江省金兰教育合作组织2019-2020学年高二上学期期中联考数学试题北京龙门育才学校2022届高三12月月考数学试题(已下线)8.4-8.6单元测试2【师说智慧课堂】新教材人教A(2019)必修(第二册)(已下线)8.6.3平面与平面垂直——课后作业(基础版)
7 . 如图所示,在
中.
,过
作
于
延长
到
,使
.沿
将
折起,将
折到点
的位置使平面
平面
.
![](https://img.xkw.com/dksih/QBM/2020/4/1/2431675944435712/2432094150836224/STEM/9df0a3186e90417887e051bbca7146ed.png?resizew=190)
(1)求证:平面
平面
;
(2)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfa8cee7d2463f6f7d352e8b65f47cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/670e137415ad4f91abd1a6ccc5ccfd2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0829446aaa4a7285056c270259d84b98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eee462ac8bfd858845cccd21ab3c55f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df6d51738ac1bc8b9530ea4a55745c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a1f6187522bd450fbc036627606ea19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4734735213b599a9915e1ed91a5d8ce4.png)
![](https://img.xkw.com/dksih/QBM/2020/4/1/2431675944435712/2432094150836224/STEM/9df0a3186e90417887e051bbca7146ed.png?resizew=190)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3abb27f8d654064a92f9d7a11e586ab5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f636f76d550dfb593a25eb680cff556.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/617e875b6421c59f0542741bf2256a28.png)
您最近一年使用:0次
8 . 如图1,四边形
为直角梯形,
,
,
,
,
,
为线段
上一点,满足
,
为
的中点,现将梯形沿
折叠(如图2),使平面
平面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/3f19d409-d3cd-40a7-b260-248b78ede12c.png?resizew=323)
(1)求证:平面
平面
;
(2)能否在线段
上找到一点
(端点除外)使得直线
与平面
所成角的正弦值为
?若存在,试确定点
的位置;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9060f03b9ee41d70d135b1e1a8902ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ec435aa1401dbce7863b531bf2f3e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/077c956ac0eb05cf120e14f17413dfa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddc7897e3f49075943704f4dbef82e5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39282bdf319f30d7bc261e2e3ab3b1e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d70676406f26d339465fe3473c0c05.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/3f19d409-d3cd-40a7-b260-248b78ede12c.png?resizew=323)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc6db50a9709c3f4d84eee7bdf1250.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500df0e782bb081e608f4bc1d576afcf.png)
(2)能否在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/149596fee6ed1e2d19fd8dadc14a8baf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802e162b98c280720fcb909cf392fda3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2020-03-29更新
|
1068次组卷
|
3卷引用:2019届湖南省长沙市第一中学高考模拟数学(理)试题
9 . 如图,在棱长为2的正方体
中,点
、
分别是棱
,
的中点,
是侧面正方形
内一点(含边界),若
平面
,则线段
长度的取值范围是______ .
![](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/394c5d2f55221975503be8aa18022480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb3a99c3ef79e88a8ecbd6824fc7ae7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e2da608b66c9aee03e2503388ba4fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0ff310aabd2282b539537ebed3f788.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/28/24ced7bc-0494-4542-abea-104ad77a8bc5.png?resizew=183)
您最近一年使用:0次
2020-03-29更新
|
425次组卷
|
3卷引用:2019届湖南省长沙市雅礼中学高考模拟卷(二)数学(理)试题
2019届湖南省长沙市雅礼中学高考模拟卷(二)数学(理)试题(已下线)第30练 空间点、线、面的位置关系-2021年高考数学(理)一轮复习小题必刷上海市宜川中学2023-2024学年高二上学期期中数学试题
名校
解题方法
10 . 设
分别是长方体
的棱
,
,
的中点,且
,
,
是底面
内一个动点,若直线
与平面
没有公共点,则三角形
的面积的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0aa6e37c51cb2b7a8e4a87a52ef975.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ea52361458ce2e49ed0fe99d8e6c02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebe236a434aa88e5633ea61574d1bed8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
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3卷引用:2019届云师大学附中高三适应性月考(九)数学(文)试题
2019届云师大学附中高三适应性月考(九)数学(文)试题2019届云师大附中高三适应性月考(九)数学(理)试题(已下线)第二章 立体几何中的计算 专题五 空间几何体截面问题 微点3 空间几何体截面问题综合训练【基础版】