如图,在等腰△ABC中,AB=AC,∠BAC=56°,∠BAC的平分线与AB的中垂线交于点O,点C沿EF折叠后与点O重合,则∠CEF的度数是( )
![](https://img.xkw.com/dksih/QBM/2021/9/10/2805344152100864/2805830040174592/STEM/1caa623c-a265-4d5f-9226-b6ec8b66e643.png?resizew=222)
![](https://img.xkw.com/dksih/QBM/2021/9/10/2805344152100864/2805830040174592/STEM/1caa623c-a265-4d5f-9226-b6ec8b66e643.png?resizew=222)
A.56° | B.32° | C.50° | D.58° |
更新时间:2021-09-11 14:58:44
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【推荐1】如图,直线EF
直线GH,Rt△ABC中,∠C=90°,顶点A在GH上,顶点B在EF上,且BA平分∠DBE,若∠CAD=26°,则∠BAD的度数为( )
![](https://img.xkw.com/dksih/QBM/2020/8/2/2526054097707008/2526967313752065/STEM/c0f37a0fcc8f441abcc222f8909b9728.png?resizew=216)
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A.26° | B.32° | C.34° | D.45° |
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【推荐2】如图,在正方形
中,E为边
上的点,点F在边
上,且
,连接
、
,
,若
,延长
交
的延长线于点G,则
的长为( )
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A.9 | B.![]() | C.10 | D.![]() |
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【推荐1】如图,已知在
中,
,点D为BC的中点,点E在AC上,将
沿DE折叠,使得点C恰好落在BA的延长线上的点F处,连结AD,则下列结论不一定正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/21/57f7042e-627b-4df7-b4e6-4bc93caa6e5e.png?resizew=180)
①
;②
;③
和
的面积相等;④
和
的面积相等
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①
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5545dc3211671941048034af38092fa6.png)
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A.①② | B.①③ | C.③ | D.①②③ |
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【推荐2】如图,把
沿
折叠后,点
的对应点为
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落在四边形
内部,则
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,
之间满足的数量关系是( )
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【推荐1】如图,在Rt△ABC中,∠C=90°,边AB的垂直平分线交AC于点D,交AB于点E,若BC=4,AC=8,则BD=( )
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【推荐2】如图,在
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名校
【推荐2】如图,在
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