如图,将一张纸片沿EF进行折叠,已知AB∥CD,若∠DFC′=50°,则∠AEF=_____ .
![](https://img.xkw.com/dksih/QBM/2020/5/13/2461594684481536/2462048205914112/STEM/a4d0878060e046d4ade6089435f1cf4c.png?resizew=141)
更新时间:2020-05-13 21:52:48
|
相似题推荐
填空题
|
适中
(0.65)
【推荐1】如图,
的一边OA为平面镜,
,在OB上有一点E,从E点射出一束光线经OA上一点D反射,反射光线DC恰好与OB平行,此时
,则
的度数是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1088aef3738dfb3f817bc1de13dc90d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93f14ceb22169674ef808d4721aac065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6beda2518cf76da94d7ec9a813dcfa82.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/13/97ef9578-5c23-40b3-bb46-a3b507010023.png?resizew=225)
您最近一年使用:0次
填空题
|
适中
(0.65)
名校
【推荐2】如图所示,A、B之间是一座山,一条铁路要过A、B两县,在A地测得铁路走向是北偏东64°,那么B地按南偏西的_____ °方向施工,才能使铁路在山腰中准确接通.
![](https://img.xkw.com/dksih/QBM/2018/4/11/1921876805746688/1922699858223104/STEM/c8ec3f18-d559-464e-b287-8d34b14a731f.png?resizew=196)
您最近一年使用:0次
填空题
|
适中
(0.65)
【推荐1】如图,把△ABC沿EF翻折,翻折后的图形如图.若∠A=60°,∠1(即∠AEB')=90°,则∠2(即∠AFC')的度数为_____________ .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/6/650694c1-44c7-41f5-8d90-33dd3aa0a34c.png?resizew=140)
您最近一年使用:0次
填空题
|
适中
(0.65)
【推荐2】如图,在
中,
,点
是
上一点,将
沿着
折叠得到
.
(1)若
,则
的度数为__________ ;
(2)设
与
交于点
,若
是直角三角形,
,
,则
的长为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f89deb952f57f4b3fa4887b098b7b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07fbad473c16df3ff62c1c6b37de6aa8.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68fbbd17c89f03dbb61cd6ffdb9a0344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d3e081637bcea5368cc72370bae283b.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd0763b031b7e6b6d87ce3554ac482d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
您最近一年使用:0次