如图,矩形
中,
,
,
是
边的中点,
是
边上的动点,
分别是
的中点,随着点
的运动,线段
长( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/027a42dc-2878-49b9-9f12-8f748db501b9.png?resizew=152)
![](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/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.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/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689c9bf39f12cbd610dabf94ad41b1f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/027a42dc-2878-49b9-9f12-8f748db501b9.png?resizew=152)
A.保持不变,长度为![]() | B.保持不变,长度为![]() |
C.不断增大 | D.先增大,后减小 |
更新时间:2022-11-21 22:18:51
|
相似题推荐
单选题
|
适中
(0.65)
【推荐1】如图,点
在正方形网格的格点上,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2969793993b88539d516e06f77668d9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/9/1688fabf-6b9b-4d26-8ef6-528a356076e7.png?resizew=161)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐2】如图,
中,
,
截
的三条边所截得弦长相等,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/21/b3a2ccee-936f-40b5-98ce-656f60c12482.png?resizew=177)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d777d15cd733338ecfd0ea63819f62c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12e515787ebe97ed2662237d9ca51ea1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/21/b3a2ccee-936f-40b5-98ce-656f60c12482.png?resizew=177)
A.110° | B.115° | C.120° | D.125° |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐1】已知
,点
在第二象限运动
,求
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faae6b35580d44148636042231cab9a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5479a3dc9e022f1c6aab7086852ab59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e155a835f92620af4ac66a9f666789.png)
A.![]() | B.1 | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】勾股定理是人类耻伟大的科学发现之一,在我国古算书《周髀算经》中早有记载.如图1,在
中,
,以
的各边为边分别向外作正方形,再将较小的两个正方形按图2所示放置,连结MG,DC.若
,且
,则AB的长为()
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/1531a296-a9e9-42b0-8ce8-3e9ea944a005.png?resizew=293)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea86458ea28ef2799c6be99181a2c62e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00db6c68c62d042f63660b6139e856bf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/1531a296-a9e9-42b0-8ce8-3e9ea944a005.png?resizew=293)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次