解题方法
1 . 如图,在正方体
中,
为棱
的中点,
为棱
(含端点)上的一个动点.给出下列四个结论:
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/8/6d6492fd-1498-49e7-aee0-3af641590d0d.png?resizew=165)
①存在符合条件的点
,使得
平面
;
②不存在符合条件的点
,使得
;
③异面直线
与
所成角的余弦值为
;
④三棱锥
的体积的取值范围是
.
其中所有正确结论的序号是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6293a2528570eda7fef7c784efc7d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/8/6d6492fd-1498-49e7-aee0-3af641590d0d.png?resizew=165)
①存在符合条件的点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ea211a573491409cb60f9fbe9a65cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c9f260496ba23993238601a89eca5c.png)
②不存在符合条件的点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a7a3dc3f3a02f4400e22dec2f2fee23.png)
③异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d8eb4a9f462ca0c1d49c3fe91e720d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/becf2941e15d668d93ea6ed980afd0ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee14db57f0c762aad845cf5b4a243c0.png)
④三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cd8ecd9806e3a8c9b2de96110970b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31458a4ee26d560cf1f3e438f5b602.png)
其中所有正确结论的序号是
您最近一年使用:0次
名校
解题方法
2 . 如图,棱长为2的正方体
中,点P在线段
上运动,以下四个命题:①三棱锥
的体积为定值;②
;③若
平面ABCD,则三棱锥
的外接球半径为
;④
的最小值为
.其中真命题有______ (写出所有真命题的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a80afb14665ad9cb3587c5364980e30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/763be97fe1e030b5509bda231a546001.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae737bd4c7f31bdc93155459a48d8457.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8571fe486121ccf36f6be04dbb2295c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e102741bc350e8ccbc6d1405b44972d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed728f911042364c77b78b597aafd344.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/5/b2614923-7e0e-4636-80c2-c49ca6630749.png?resizew=160)
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3 . 如图,在长方体
中,
,
,M,N分别为BC,
的中点,点P在矩形
内运动(包括边界),若
平面AMN,则
取最小值时,三棱锥
的体积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5213d6ac74fb6044cab6927a3d2acaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f86e2d69b11402d9d6cbb06e057778a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0ff310aabd2282b539537ebed3f788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d88755289c4e9a6fd25b181c82bf8057.png)
您最近一年使用:0次
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解题方法
4 . 已知正方体
的所有顶点均在一个表面积为
的球面上,空间内的一点
满足
,若
平面
,
平面
,且
平面
,则
的长为_________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02dba908a505cff93e0b297d00b82a40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b3c60d9b3f8e557ae40d111e1a352eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/371acefa197d730a3b4fc34983daa2cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc521258fcaeaf7acffc5ae98c3af6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3761d10eb13d451213209874088d573.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87e1178dd471fa1a92bc037607c954aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
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2卷引用:河南省湘豫名校联考2023-2024学年高二上学期10月阶段性考试数学试题
名校
解题方法
5 . 如图,已知菱形
中,
,
,
为边
的中点,将
沿
翻折成
(点
位于平面
上方),连接
和
,
为
的中点,则在翻折过程中,点
的轨迹的长度为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eee296a7d9fba487f1485c61580196f.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/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adeda53be579292e60e6d775cab6fd28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87cdc08e1c4a04a18d5ecea03393e36d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87cdc08e1c4a04a18d5ecea03393e36d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/26/9d2449e4-ba0e-435c-b432-6fc3f03d4eeb.png?resizew=155)
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3卷引用:四川省内江市第一中学2023-2024学年高二上学期期中数学试题
四川省内江市第一中学2023-2024学年高二上学期期中数学试题四川省遂宁市射洪中学校2023-2024学年高二上学期第三次学月考试数学试题(已下线)第三章 空间轨迹问题 专题五 微点2 翻折、旋转问题中的轨迹问题综合训练【培优版】
名校
解题方法
6 . 在四棱锥
中,
面
,四边形
为直角梯形,
,
,
,则平面
与平面
夹角的余弦值为______ ,异面直线
与
的距离为______ .
![](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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0774a8e1ada62d0f3953dc48bf322f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c2753753faf2cb9a0003aa8e3945159.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f121eabff3c62c1a196d9ca5f6f83f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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3卷引用:山东普高大联考2023-2024学年高二上学期10月联合质量测评数学试题
山东普高大联考2023-2024学年高二上学期10月联合质量测评数学试题陕西省西安市区县联考2023-2024学年高二上学期期末数学试题(已下线)第二章 立体几何中的计算 专题二 空间距离 微点9 空间两条直线的距离(五)【培优版】
名校
7 . 如图,C是以AB为直径的圆O上异于A,B的点,平面平面
,
,
,E,F分别是PC,PB的中点,记平面AEF与平面ABC的交线为直线l.若直线l上存在点
,使直线
分别与平面AEF、直线EF所成的角互余,则
的长为
您最近一年使用:0次
解题方法
8 . 如图,在棱长为1的正方体
中,点
是对角线
上的动点(点
与
不重合),则下面结论中正确的是__________ .(填序号)
①存在点
,使得平面
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b0a582c36d62d83c16425b2f54b4354.png)
②存在点
,使得
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6e96872af0f0b341835576c407e364.png)
③对任意点
的面积都不等于![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0467b0675c3ecfb282cc88255284d3e1.png)
④
分别是
在平面
,平面
上的正投影图形的面积,对任意点
,
![](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/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b04d6165b18f1a031b2a137961832491.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/14/2a051d9a-16b1-48f1-ab42-79751f3d8dba.png?resizew=163)
①存在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1671cc93b233d6e52529a50c1a622ce3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b0a582c36d62d83c16425b2f54b4354.png)
②存在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d1d2e0f281222a5f289ea4008370aed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6e96872af0f0b341835576c407e364.png)
③对任意点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc1c46130944027b9c2a39b77927269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0467b0675c3ecfb282cc88255284d3e1.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3637753af5ce86be9c23a9beb6b5067.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dd5683dba7d9f29d643e9a3e3204fa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc6184b191e6da43911e701121517e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3928d0c519a9e198a0313c75147f6ca.png)
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2卷引用:北京市育英学校(四年制高三)2021-2022学年高二下学期期中练习数学试题
9 . 如图,在棱长为4的正方体
中,
的中点是P,过直线
作与平面
平行的截面,则该截面的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b0ec61018d883ea288c2ec406f2f79f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/11/dddf73d8-d11e-42e4-a5f3-56d7a7f6adc5.png?resizew=154)
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7卷引用:江西省吉安市第三中学2023-2024学年高二上学期开学考试(艺术类)数学试题
江西省吉安市第三中学2023-2024学年高二上学期开学考试(艺术类)数学试题云南省昭通市云天化中学教研联盟2023-2024学年高二上学期期中数学试题(已下线)第10章 空间直线与平面(知识归纳+题型突破)-2023-2024学年高二数学单元速记·巧练(沪教版2020必修第三册)广东省云浮市黄岗实验中学2022-2023学年高一下学期5月月考数学试题(已下线)第七章 立体几何与空间向量 第三节?第二课时直线,平面平行的判定与性质(B素养提升卷)江苏省南京市六校联合体2022-2023学年高一下学期第二次联合调研(5月)数学试题全国卷2024届高三一轮复习联考(三)文科数学试卷
名校
10 . 如图,在长方体
中,
,
,
为
的中点,过
的平面
分别与棱
,
交于点E,F,且
,则截面四边形
的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27db558e8db4c957654c8e5cecd2d2dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55a2310cbba5e050488cd9296eb195d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8352d5bb010209b795946f7095418115.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d918361b03a48660dbd5987cd7a7a3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/9/166533d4-7d83-4174-867d-430aa79fbd6f.png?resizew=143)
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2023-08-07更新
|
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4卷引用:江西省赣州市第四中学2023-2024学年高二上学期开学考试数学试题
江西省赣州市第四中学2023-2024学年高二上学期开学考试数学试题(已下线)第10章 空间直线与平面(知识归纳+题型突破)-2023-2024学年高二数学单元速记·巧练(沪教版2020必修第三册)山西省晋中市平遥县第二中学校2022-2023学年高一下学期期中数学试题(已下线)第七章 立体几何与空间向量 第三节?第一课时直线,平面平行的判定与性质(A素养养成卷)