如图,在矩形
中,对角线
交于点O,已知
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b3c032441543354c154ee67d744abb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75844de93fa43a740fb420cfba724480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
A.3 | B.![]() | C.![]() | D.6 |
更新时间:2024-05-08 12:41:57
|
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【推荐1】如图,已知菱形
的顶点
,且
,点A在y轴的正半轴上.按以下步骤作图:①以点B为圆心,适当长度为半径作弧,分别交边AB、BC于点M、N;②分别以点M、N为圆心,大于
的长为半径作弧,两弧在
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/5/9a13e94a-0b13-47c3-bf39-ed82794cc54c.png?resizew=202)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/5/9a13e94a-0b13-47c3-bf39-ed82794cc54c.png?resizew=202)
A.![]() | B.![]() | C.(1,2) | D.![]() |
您最近一年使用:0次
单选题
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适中
(0.65)
【推荐1】如图,在矩形
中,过
的中点
作
,交
于
,交
于
,连接
、
.若
,
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
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A.2 | B.![]() | C.3 | D.2![]() |
您最近一年使用:0次
单选题
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适中
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【推荐2】如图,已知矩形
的对角线
,
相交于点O,
平分
.交
于E,若
,
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/2021/6/2/2734459718221824/2734827771699200/STEM/c8ed22ae-d7ac-43fe-9560-a7246caa040d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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