如图,在四边形ABCD中,∠A=∠B,点E为AB边的中点,∠DEC=∠A.有下列结论:①DE平分∠AEC;②CE平分∠DEB;③DE平分∠ADC;④EC平分∠BCD.其中正确的是_______________ .(把所以正确结论的序号都填上)
![](https://img.xkw.com/dksih/QBM/2017/5/24/1693747062521856/1694782885134336/STEM/38f5c5d4b684496a8f5e991048d4967b.png?resizew=183)
2017·安徽淮北·三模 查看更多[6]
安徽省濉溪县2017届九年级下学期第三次教学质量检测数学试题(已下线)学科网2018年4月2018届九年级第二次模拟大联考(安徽)-数学(已下线)学科网2018年4月2018届九年级第二次模拟大联考(安徽)- 数学(已下线)专题4.40 相似三角形几何模型-一线三等角(培优篇)(专项练习)-2022-2023学年九年级数学上册基础知识专项讲练(北师大版)(已下线)专题27.35 相似三角形几何模型-一线三等角(培优篇)(专项练习)-2022-2023学年九年级数学下册基础知识专项讲练(人教版)(已下线)专题6.38 相似三角形几何模型-一线三等角(培优篇)(专项练习)-2022-2023学年九年级数学下册基础知识专项讲练(苏科版)
更新时间:2017-05-25 21:07:31
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【推荐1】如图,在
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【推荐2】已知直线
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【推荐1】如图,等腰
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