如图,正方形ABCD的对角线AC、BD交于点O,AO=3,则AB的长为( )
![](https://img.xkw.com/dksih/QBM/2021/10/26/2837784591187968/2844030812954624/STEM/fc0bbca9911d45cdaec1aa12c6348463.png?resizew=91)
![](https://img.xkw.com/dksih/QBM/2021/10/26/2837784591187968/2844030812954624/STEM/fc0bbca9911d45cdaec1aa12c6348463.png?resizew=91)
A.2 | B.3 | C.![]() | D.![]() |
更新时间:2021-11-04 14:18:24
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相似题推荐
单选题
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适中
(0.65)
【推荐1】如图,在
中,
,
,
,点P为
上任意一点,连接
,以
、
为邻边作
,连接
,则
的最小值为( )
![](https://img.xkw.com/dksih/QBM/2023/4/7/3211369617022976/3211915470872576/STEM/6aafb0a86d82495199337cc369dfa962.png?resizew=166)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
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【推荐2】如图,在等腰直角
中,
,
、
是
上的两点,且
,过
、
作
、
分别垂直
、
,垂足为
、
,延长
、
交于点
,连接
、
.其中:
四边形
是正方形;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7673e25c9606cd7418964e3fef77f94b.png)
;
当
时,
,正确的结论有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】如图,在正方形
中,顶点A,B,C,D在坐标轴上,且
,以
为边构造菱形
(点E在x轴正半轴上),将菱形
与正方形
组成的图形绕点O逆时针旋转,每次旋转
,则第10次旋转结束时,点
的坐标为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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【推荐2】如图,在边长为
的正方形
中,
是边
的中点,
是边
上的一个动点
不与
重合
,以线段
为边在正方形内作等边
,
是边
的中点,连接
,则在点
运动过程中,
的最小值是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/11/7f06d7f2-392b-4011-a3fd-cedf0fa984bf.png?resizew=141)
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