如图,将一个等腰直角三角形按图示方式依次翻折,则下列说法正确的个数有( )
![](https://img.xkw.com/dksih/QBM/2019/3/5/2154061025959936/2155495131889665/STEM/3639cd6cfb664df7bd80f01dc651f755.png?resizew=475)
①DF平分∠BDE;②△BFD是等腰三角形;;③△CED的周长等于BC的长.
![](https://img.xkw.com/dksih/QBM/2019/3/5/2154061025959936/2155495131889665/STEM/3639cd6cfb664df7bd80f01dc651f755.png?resizew=475)
①DF平分∠BDE;②△BFD是等腰三角形;;③△CED的周长等于BC的长.
A.0个; | B.1个; | C.2个; | D.3个. |
17-18七年级下·全国·课后作业 查看更多[8]
北师大版数学七年级下册第五章5.4利用轴对称设计课时练习黑龙江大庆市万宝学校2018-2019学年七年级(五四制)上学期期末考试数学试题【全国百强校】河北省武邑中学2018-2019学年七年级下学期第一次月考数学试题北师大版2019-2020学年七年级下册第五章 4.利用轴对称进行设计数学试题(已下线)【万唯原创】2020年河北中考-逆袭卷-诊断特训7(已下线)北师大版数学七年级下册期末复习重点题型汇总 (已下线)专题3.5 生活中的轴对称【易错题型专项训练】-2020-2021学年七年级数学下学期期末专项复习(北师大版)(已下线)专题13.22 轴对称与折叠问题(巩固篇)(专项练习)-2022-2023学年八年级数学上册基础知识专项讲练(人教版)
更新时间:2019-03-08 13:38:09
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【推荐1】已知
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A.5° | B.10° | C.15° | D.20° |
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A.![]() | B.![]() | C.![]() | D.![]() |
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