如图,直线
、
、
分别过正方形
的三个顶点A,B,D,且相互平行,若
与
的距离为1,
与
的距离为1,则该正方形的面积是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fce9427c9b17e4d3cda0c3ff3e2e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fce9427c9b17e4d3cda0c3ff3e2e14.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/11/be7210d0-a908-48d4-902b-557357466db3.png?resizew=138)
更新时间:2016-12-06 14:02:11
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【推荐1】如图,已知
和
都是等腰三角形,
,
、
交于点
,连接
.下列结论:①
;②
⊥
;③
平分
;④
.其中正确结论的是__________ .
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【推荐2】已知AB=AC.如图1,D、E为∠BAC的平分线上的两点,连接BD、CD、BE、CE;如图2,D、E、F为∠BAC的平分线上的三点,连接BD、CD、BE、CE、BF、CF;如图3,D、E、F、G为∠BAC的平分线上的四点,连接BD、CD、BE、CE、BF、CF、BG、CG…依此规律,第20个图形中有全等三角形的对数 _____ .
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【推荐1】如图,公路
与
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,
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【推荐1】如图,正方形
的边长为1,以对角线
为边作第二个正方形
,再以对角线
为边作第三个正方形
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的面积为_____________ ,第n个正方形
的面积为_____________ (用含n的代数式表示).
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0fc6cf34323f80b94fe2a9d0867d62e.png)
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【推荐2】如图, 正方形
的面积为
, 菱形
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