已知:如图,△ABC是等边三角形,D、E分别是BA、CA的延长线上的点,且AD=AE,连接ED并延长到F,使得EF=EC,连接AF、CF、BE.
![](https://img.xkw.com/dksih/QBM/2013/6/3/1573660661686272/1573660667011072/STEM/1945d53086b849ae93ec5acaaecda906.png)
(1)求证:四边形BCFD是平行四边形;
(2)试指出图中与AF相等的线段,并说明理由.
![](https://img.xkw.com/dksih/QBM/2013/6/3/1573660661686272/1573660667011072/STEM/1945d53086b849ae93ec5acaaecda906.png)
(1)求证:四边形BCFD是平行四边形;
(2)试指出图中与AF相等的线段,并说明理由.
更新时间:2016-12-05 18:03:44
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【推荐2】在直角坐标系中,
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解答题-证明题
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真题
【推荐2】图1是某长征主题公园的雕塑,将其抽象成如图2所示的示意图,已知
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