名校
解题方法
1 . 如图,在四棱锥
中,
面
,且
,
分别为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/27/c8482f3c-817c-4c24-8721-fc34280f59d9.png?resizew=171)
(1)求证:
平面
;
(2)在平面
内是否存在点
,满足
,若不存在,请简单说明理由;若存在,请写出点
的轨迹图形形状.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bcf75eebbbc06b7571c869debc3db6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c98d5943239266fd56121a5a9e241ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1457d2e76a5b86de1abf121c51eb9d35.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/27/c8482f3c-817c-4c24-8721-fc34280f59d9.png?resizew=171)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
(2)在平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2da5312b15f602fcb8c0ffe9ea57a95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
您最近一年使用:0次
2 . 已知正方体
的棱长为2,则四棱锥
的体积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b54ed3e5c70f86a4f45fd67641b304d6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
3 . 如图所示,正方体
的棱长是2,E、F分别是线段AB、
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/18/d1030ec8-4459-45ed-8f3c-91533f5663d2.png?resizew=151)
(1)证明:
平面
;
(2)求
点到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e539f26ed5e0b20ff7220559324869a4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/18/d1030ec8-4459-45ed-8f3c-91533f5663d2.png?resizew=151)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ebb05874eb3353d754af24c9974273e.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e4755dc59cb5a03cd39879bc80fdbb9.png)
您最近一年使用:0次
解题方法
4 . 如图,四棱锥
的底面为正方形,
平面
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/8/0eed2f4d-8e6e-4ac5-8bb0-52294b84a057.png?resizew=158)
(1)证明:
四点共面;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a963043aba5c00325328a5ebd28a44bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66e7b9c89af8b9e765a103b0ca317b04.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/8/0eed2f4d-8e6e-4ac5-8bb0-52294b84a057.png?resizew=158)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b55e4738f225d13bb46a4fd762ee9fba.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/588690c4a218025937357ffab8d63c7a.png)
您最近一年使用:0次
名校
解题方法
5 . 如图,在棱长为1的正方体
中( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/40187ba6-d296-4e9b-b380-00c43fb357a4.png?resizew=160)
A.AC与![]() ![]() |
B.三棱锥![]() ![]() |
C.![]() ![]() ![]() |
D.点D到平面![]() ![]() |
您最近一年使用:0次
2023-11-26更新
|
122次组卷
|
2卷引用:安徽省合肥市重点中学2023-2024学年高二上学期期中联考数学试题
解题方法
6 . 已知正方体
的棱长为
,点
是
的中点,则点A到直线
的距离是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
您最近一年使用:0次
名校
解题方法
7 . 在正方体
中,若棱长为
,
,
分别为线段
,
上的动点,则下列结论错误的是
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.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/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://img.xkw.com/dksih/QBM/2023/11/17/3370018191990784/3374813314662400/STEM/0fc70c52420442dfa92a5c3eb4a94674.png?resizew=4)
A.![]() ![]() | B.直线![]() ![]() ![]() |
C.平面![]() ![]() | D.点![]() ![]() ![]() |
您最近一年使用:0次
2023-11-24更新
|
145次组卷
|
2卷引用:安徽省合肥市六校联盟2023-2024学年高二上学期期中联考数学试卷
名校
解题方法
8 . 在长方体
中,底面是边长为1的正方形,
为
的中点,
为
上靠近点
的三等分点,则点
到平面
的距离为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8889b0d606a02a661f3d071fa672d83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d8eb4a9f462ca0c1d49c3fe91e720d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae8768996ca9a0f2c5d9a19abbd54df.png)
您最近一年使用:0次
2023-11-17更新
|
278次组卷
|
3卷引用:安徽省合肥市巢湖市第一中学2023-2024学年高二上学期期中数学试题
9 . 如图,在正三棱柱
中,侧棱长为3,
,空间中一点
满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba572807d859740c40b286a10b505e73.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/3/dcc390d5-9889-46fe-aef7-a33b974e7204.png?resizew=136)
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
名校
解题方法
10 . 已知
是平面
内一点,
是平面
的法向量,若点
是平面
外一点,则点
到平面
的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/309f095ed75c8f9c7997ca9620fb8001.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d15c729af12a15a0107739792f5da015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afd4fb6309c72f9a0f1ee3b575efa22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-11-11更新
|
574次组卷
|
2卷引用:安徽省合肥市第一中学2023-2024学年高二上学期期中考试数学试题