如图,在正方形
中,
,
为其对角线
上一点,当线段
的长度最短时,其长度记为
,则
的值是( )
![](https://img.xkw.com/dksih/QBM/2021/6/24/2749871442231296/2816479414714368/STEM/459553da-a7dd-49fe-b18b-23f4466128ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b27d1527f81520e833e9bd4adeb4bc6.png)
![](https://img.xkw.com/dksih/QBM/2021/6/24/2749871442231296/2816479414714368/STEM/459553da-a7dd-49fe-b18b-23f4466128ff.png)
A.![]() | B.1 | C.![]() | D.2 |
更新时间:2021-09-28 14:17:01
|
相似题推荐
单选题
|
适中
(0.65)
名校
【推荐1】已知:如图,在正方形
外取一点
,连接
、
、
.过点
作
的垂线交
于点
.若
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d0f08eb47a5429245f4c162d0355a45.png)
.下列结论:①
;②点
到直线
的距离为
;③
;④
;⑤
.其中正确结论的序号是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c17d3ece9b7096aa5db32383448a072f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d0f08eb47a5429245f4c162d0355a45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8405158751b8479e4cdb71bb9a950a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fd94ce5e3c9daeb9129d945a45a953e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa015dbde53c3a8b1c603bd9c1eebdf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66939e4caddc41bc8db4bc8b914626ee.png)
A.①③④ | B.①②⑤ | C.③④⑤ | D.①③⑤ |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】如图,在矩形
中,
于点
,若
,则
的长度为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/23/ea1e01e0-88a2-4dc7-8f9a-7054e0eb1c9d.png?resizew=108)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d320f180419175d75eebc618cc458b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/def98b0b6772430c4f1864e781ea7728.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/23/ea1e01e0-88a2-4dc7-8f9a-7054e0eb1c9d.png?resizew=108)
A.1 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐1】如图,正方形ABCD的边长为3,将长为2
的线段QF的两端放在正方形相邻的两边上同时滑动.如果点Q从点A出发,在AB上滑动,同时点F在BC上滑动,当点F到达点C时,运动停止,那么在这个过程中,线段QF的中点M所经过的路线长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/417fc7c2-2380-4b79-b231-beb59253aea7.png?resizew=154)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/417fc7c2-2380-4b79-b231-beb59253aea7.png?resizew=154)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】如图,正方形ABCD的边长为3,对角线AC与BD相交于点O,CM交BD于点N,若BM=1,则线段ON的长为( )
![](https://img.xkw.com/dksih/QBM/2018/12/5/2090389293490176/2094534017474560/STEM/d6353d91169745368548bc5bff55030b.png?resizew=127)
![](https://img.xkw.com/dksih/QBM/2018/12/5/2090389293490176/2094534017474560/STEM/d6353d91169745368548bc5bff55030b.png?resizew=127)
A.![]() | B.1 | C.![]() | D.![]() |
您最近一年使用:0次