1 . 设m、n为空间中两条不同直线,
、
为空间中两个不同平面,下列命题中正确的为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
A.若m上有两个点到平面![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若m、n是异面直线,![]() ![]() ![]() ![]() ![]() |
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2024-05-14更新
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1703次组卷
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7卷引用:贵州省2024届高三下学期4月新高考“大数据赋分”诊断性联合考试数学试题
贵州省2024届高三下学期4月新高考“大数据赋分”诊断性联合考试数学试题(已下线)专题3 考前押题大猜想11-15河北省保定市曲阳县第一高级中学2023-2024学年高一下学期5月月考数学试卷(已下线)江苏省南京市建邺高级中学2022-2023学年高一下学期期末数学试题(已下线)第六章立体几何初步章末二十种常考题型归类(2)-【帮课堂】(北师大版2019必修第二册)广东省茂名市信宜市第二中学2023-2024学年高一下学期5月月考数学试题(已下线)第1套 复盘提升卷 (基础)【高一期末复习全真模拟】
名校
解题方法
2 . 如图,在正方体
中,
为线段
的中点,
为线段
上的动点.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
A.存在点![]() ![]() |
B.存在点![]() ![]() ![]() |
C.三棱锥![]() |
D.存在点![]() ![]() |
您最近一年使用:0次
名校
3 . 如图,在四棱锥
中,
,
,
平面
,
,
,
,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/12/03c73120-6bd7-490e-b2ba-c578741dbcbc.png?resizew=175)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be41b05e11ba5eadaaed9a224b949774.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b0382c28547d3834ca71f3f0677695.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/37002ada5d194d4d062fa3285d7d9824.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9133fe4c010285dc9f6d02b0fc45461b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba8c7d2b78ab2452b0a57925241dbdb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5745e2dc1d5308872c68ae932cd13ffa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/12/03c73120-6bd7-490e-b2ba-c578741dbcbc.png?resizew=175)
A.1 | B.![]() | C.![]() | D.![]() |
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2023-12-13更新
|
244次组卷
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3卷引用:贵州省部分中学2024届高三上学期第四次月考数学试题
解题方法
4 . 如图,在直三棱柱
中,
,D是棱
的中点,
是棱
上的一点,且
.
(1)求证:
平面
;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a55c3f663b6b205bb0d541a72e4d4759.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/b6a2e042-f6b2-4012-9695-70ecf4a76121.png?resizew=145)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ebe6a446b91e73b181f9f4d56264dd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/692157e4e64f78fe0d293a1c7e343ccb.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfe6225c58a4722eb10ab7ba1885dd3f.png)
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2023-11-26更新
|
127次组卷
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3卷引用:贵州省部分中学2024届高三上学期第四次月考数学试题
解题方法
5 . 如图所示,在直三棱柱中,底面
是直角三角形,
且
,
,
分别为线段
和线段
上的动点,则下列说法错误的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/29/2d0a250c-af99-42ab-a895-870f8dd0bd88.png?resizew=169)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632e63b610953515e4f130034ca913e6.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/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/29/2d0a250c-af99-42ab-a895-870f8dd0bd88.png?resizew=169)
A.当![]() ![]() ![]() |
B.当![]() ![]() ![]() ![]() ![]() ![]() ![]() |
C.当![]() ![]() ![]() |
D.当![]() ![]() ![]() ![]() |
您最近一年使用:0次
名校
解题方法
6 . 如图,在正方体
中,
为
的中点( )
![](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/22adbc0da438220f9cace11b629d799b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/7/b0869e3e-9bc8-42ec-929a-03c70fabcb39.png?resizew=158)
A.![]() ![]() |
B.![]() |
C.若正方体的棱长为1,则点D到平面![]() ![]() |
D.若正方体的棱长为1,则直线![]() ![]() ![]() |
您最近一年使用:0次
2023-09-29更新
|
473次组卷
|
2卷引用:贵州省思南中学2024届高三上学期第二次月考数学试题
10-11高三·贵州·阶段练习
名校
7 . 三棱锥
的四个顶点点在同一球面上,若
底面
,底面
是直角三角形,
,则此球的表面积为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/965f3beeb15bab8f6620f919721398ef.png)
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2023-09-24更新
|
609次组卷
|
5卷引用:2011届贵州省五校高三第五次联考理科数学(暨遵义四中第13次月考)
(已下线)2011届贵州省五校高三第五次联考理科数学(暨遵义四中第13次月考)黑龙江省鸡西市实验中学2022-2023学年高二上学期10月月考数学试题宁夏回族自治区石嘴山市平罗县平罗中学2022-2023学年高二上学期期中理科数学试题四川省南充市南部县第二中学2023-2024学年高二上学期10月月考数学试题湖南省长沙市德成学校2023-2024学年高二上学期期中数学试题
解题方法
8 . 如图,棱台
中,
,底面ABCD是边长为4的正方形,底面
是边长为2的正方形,连接
,BD,
.
(1)证明:
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3da8c338342e38c9aa3f274c053fd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7929b25566f051e25a63ad341470523a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d609847e2ff3d64e5a514582c3ead0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c92b5799d12ea37de46d7c942ce7a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/288abe01824f42cfe725509af5aec4cd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/16/ea55b6c1-0ece-4cfc-bcf9-98ab561004e6.png?resizew=158)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/555dfe77eeb168a880694e22bd9acbdd.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e9271e2c743a961a5abe3edb752cbe2.png)
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2023-09-15更新
|
262次组卷
|
2卷引用:贵州省遵义市2023届高三第三次统考文科数学试题
解题方法
9 . 如图,在直三棱柱
中,
,
,则
与平面
所成角的正弦值等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fd8f940b796af67206b3f9dd410a407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57fdd2a3642716fcf5100011eb3ec88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac61c24f99a4e466f1e2ea011893866.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/14/d941523f-548b-4e3e-aecb-5ded76151f83.png?resizew=112)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
10 . 如图,三棱锥
的三条侧棱
两两垂直,且
.点
是侧面
内一点,过点
作一个既平行于侧棱
,又平行于底边
的三棱锥的截面,则该截面面积的最大值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a94d59dee2d5a8f0425b64b2083825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6bb3953506cc044c40c59680be97cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5824bc5be6142a56421d587dd66085b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36957cc47e8b85809737f005345fd619.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95226c64f0afdaa10b95ec097a0720ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/13/74bc1a83-c36e-4100-ac6a-751bcfccf59d.png?resizew=180)
您最近一年使用:0次