名校
解题方法
1 . 如图,已知长方体
,
,
,E、F分别是棱
、
的中点,点
为底面四边形ABCD内(包括边界)的一动点,若直线
与平面BEF无公共点,则点
的轨迹长度为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6155f82a6f64b20085976cea9b64193.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/698e0bf94fa25fe724da8d5504b8557a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c798204bbe306b3efd5bc9eae594c171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-04-13更新
|
1074次组卷
|
4卷引用:浙江省宁波市三锋教研联盟2022-2023学年高一下学期期中联考数学试题
浙江省宁波市三锋教研联盟2022-2023学年高一下学期期中联考数学试题福建省武夷山第一中学2022-2023学年高一下学期期中考试数学试题(已下线)模块四 高一下期中重组篇(浙江)(已下线)专题09 外接球、内切球与动点最值(2) -期末考点大串讲(苏教版(2019))
名校
解题方法
2 . 正方体
中,
是棱
的中点,
是底面
内一动点,且
、
与底面
所成角相等,则动点
的轨迹为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0ff310aabd2282b539537ebed3f788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/438f34bc8b04e8c494b91306ac6fe352.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.圆的一部分 | B.直线的一部分 | C.椭圆的一部分 | D.双曲线的一部分 |
您最近一年使用:0次
3 . 已知
为正方体
表面上的一个动点,
是棱
延长线上一点,且
,若
,则动点
的运动轨迹的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a9389a0337ef90c73ab9d241b3f421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5bf5785f3554a34505a8a351fdc28f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ca58b14f9bbdbc3204f6f330525943.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
4 . 如图,正方体
中,
是上底面
内一点,点
,
在直线
上运动,若直线
和
所成角的最小值与直线
和平面
所成角的最大值相等,则满足条件的点
的轨迹是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/aa2d06eb-be4b-4ea5-b709-50be54d5dbd7.png?resizew=170)
![](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/632f2bf1cd0435041fa04b01901d1c8c.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/aa2d06eb-be4b-4ea5-b709-50be54d5dbd7.png?resizew=170)
A.直线的一部分 | B.圆的一部分 |
C.椭圆的一部分 | D.抛物线的一部分 |
您最近一年使用:0次
解题方法
5 . 如图,在正方体
中,点
在直线
运动,给出四个命题:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/13290010-b694-4d86-9938-28402ed871eb.png?resizew=161)
(1)三棱锥
的体积不变;
(2)直线
与直线
所成的角最小值为
;
(3)二面角
的大小不变;
(4)
是平面
上到直线
与直线
的距离相等的点,则点
的轨迹是抛物线.正确的命题个数是( )
![](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/0d8772aa893a9c1d40f714cb25701701.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/13290010-b694-4d86-9938-28402ed871eb.png?resizew=161)
(1)三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad99ef5e70de37345c708b758d545f.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
(3)二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67094912ebf6dd7b27b835af55df4826.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a696a182fff038a86b2bbe8ca099442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
名校
6 . 正方体
的棱长为2,点M是BC的中点,点P是正方形ABCD所在平面内的一个动点,且满足PM=2,P到直线
的距离为
,则点P轨迹是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
A.圆 | B.两个点 | C.一条直线 | D.一个点 |
您最近一年使用:0次
名校
7 . 已知点
是正方体
底面
内一动点,且满足
,设
与平面
所成的角为
,则
的最大值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/c7ba89a2-94f2-4bb6-9fc6-61e9dd7a11c0.png?resizew=175)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce907e681540797c83646f17f2cc9f39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79039b211d151710a15fc9dda11d6225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/c7ba89a2-94f2-4bb6-9fc6-61e9dd7a11c0.png?resizew=175)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-11-14更新
|
1168次组卷
|
6卷引用:浙江省杭州第四中学下沙校区2022-2023学年高二上学期期中数学试题
名校
8 . 已知点
是正四面体
侧面
上一点,且点
到底面
的距离与它到顶点
的距离相等,则动点
的轨迹( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a94d59dee2d5a8f0425b64b2083825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af57d63e83ef0e183add10cd6beec65b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be54e84508decfcce6d2fcbe6c8c1a92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.线段 | B.圆的一部分 | C.椭圆的一部分 | D.双曲线的一部分 |
您最近一年使用:0次
9 . 如图,棱长为4的正四面体
,
,
分别是
,
上的动点,且
,则
中点的轨迹长度为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/17/8ea37565-fd0d-4f2f-9d32-a4d915a35044.png?resizew=139)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cbdd945cdadb7dca0d281d791374573.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/17/8ea37565-fd0d-4f2f-9d32-a4d915a35044.png?resizew=139)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
10 . 已知正方体
的棱长为
,M,N为体对角线
的三等分点,动点P在三角形
内,且三角形PMN的面积
,则点P轨迹长度为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/18/2bf0148e-68f2-4656-a5f3-c223ca5a8b3d.png?resizew=163)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13cfdc6224181d44e63aab43ddaf07ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655fddb91e399db8428447ae6dc7a062.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/18/2bf0148e-68f2-4656-a5f3-c223ca5a8b3d.png?resizew=163)
A.![]() | B.![]() | C.![]() | D.![]() |
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