名校
1 . 在正三棱柱
中,
,点P满足
,其中
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af0e44cb429eea46e7ee4320147192b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac6b545127bd51036a5a7b0d3cd5b320.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faf326510f76018d51105bb42c195ca3.png)
A.当![]() ![]() ![]() |
B.当![]() ![]() |
C.当![]() ![]() ![]() |
D.若![]() ![]() |
您最近一年使用:0次
名校
解题方法
2 . 以等腰直角三角形斜边
上高
为折痕,把
和
折成
的二面角.若
,
,则
最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c0927afc571a7c966c98192040979e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a275c00b3f5f46cdbe046601110ab504.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4be739f3b4bfd17be487ac8f04faf89.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
3 . 已知正方体
的棱长为
分别为棱
的点,且
,若点
为正方体内部(含边界)点,满足:
为实数,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0caff91dc7b498b2b83550af63f0eed1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94009f976a2dd35f294bbcbb6e859ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0935b253b0afe1deec8c3ca59e48cd1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c7b04b3e19cf0bcaf970cf5ab096e9d.png)
A.点![]() ![]() |
B.当![]() ![]() ![]() |
C.![]() ![]() |
D.当![]() ![]() ![]() ![]() |
您最近一年使用:0次
解题方法
4 . 以等腰直角三角形斜边
上的高
为折痕,把
和
折成
的二面角.若
,
,其中
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ea52361458ce2e49ed0fe99d8e6c02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25c800518385fca014143b288e0b2c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb4a94febde71b5356cad841ce643050.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98027e8df7b1b856b480b7b98fc53c08.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
5 . 已知正四面体
的棱长为3,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4278c0911e7df78965e78cff69cac5f5.png)
A.若点![]() ![]() ![]() ![]() ![]() |
B.在正四面体![]() ![]() |
C.若正四面体![]() ![]() |
D.点![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
名校
6 . 在正四棱柱
中,
,
,其中
,
,
,则下列命题正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14b6a67e85b6106a81942584f1006831.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddfc92edbdd9aa4396680d07674572f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee72261f6901e62dfd0ffe547406544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e2e01346f60857ff635bb766802e57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2187ee1ea3b7e47a6283314322e5decf.png)
A.当![]() ![]() ![]() ![]() |
B.当![]() ![]() ![]() ![]() ![]() |
C.当![]() ![]() ![]() |
D.当![]() ![]() ![]() |
您最近一年使用:0次
解题方法
7 . 已知正四面体
的棱长为2,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4278c0911e7df78965e78cff69cac5f5.png)
A.正四面体![]() ![]() |
B.若点P满足![]() ![]() ![]() ![]() |
C.若正四面体![]() ![]() ![]() ![]() |
D.若正四面体![]() ![]() |
您最近一年使用:0次
名校
8 . 已知正方体
的棱长为1,点P满足
,
,
,
(P,B,D,
四点不重合),则下列说法正确的是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ae7072624587654d162548a80d7a1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be7b5066a7ac79c102d2a30d6280d3ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
A.当![]() ![]() |
B.当![]() ![]() ![]() ![]() |
C.当![]() ![]() ![]() ![]() |
D.当![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2023-12-09更新
|
808次组卷
|
8卷引用:广东省执信、深外、育才等学校2024届高三上学期12月联考数学试题
名校
解题方法
9 . 在正四棱锥
中,若
,
,平面AEF与棱PD交于点G,则四棱锥
与四棱锥
的体积比为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/120f8941f03c070168666baa80ef8c72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e70b3a2b50632e4441045cd65b94ffd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/042dd94d956b294c889202cc9d0721db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
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名校
解题方法
10 . 如图,点
是正四面体
底面
的中心,过点
的直线分别交
于点
是棱
上的点,平面
与棱
的延长线相交于点
,与棱
的延长线相交于点
,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/28/964d2948-5e4c-4af3-883d-2e371eb155bf.png?resizew=167)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a351136b18bc7d3bd5122332772ab23b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e675a92cad72c65aa4071b9d9e226090.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b9b62ea88f3953f9010bcb685d3329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2697046fb5056181292bcea4f7f3f8e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/28/964d2948-5e4c-4af3-883d-2e371eb155bf.png?resizew=167)
A.存在点![]() ![]() ![]() |
B.存在点![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() ![]() |
D.![]() |
您最近一年使用:0次