如图,三角形纸片
中,点D在边
上,连接
,使得
,将这张纸片沿直线
翻折,点C落在
处,连接
,且
,若
,
,则点A到直线
的距离是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/532aece6cfd67e2a97977eed978dbf2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
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![](https://img.xkw.com/dksih/QBM/2021/12/19/2875887037743104/2877161206292480/STEM/8914a4ed-e7e2-43db-ac0f-109934205bcd.png?resizew=212)
更新时间:2021-12-21 09:42:22
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【推荐1】如图,将边长为8的正方形纸片
对折,使点
与点
重合,点
与点
重合,再将其展开,得到折痕
;然后将正方形纸片的右下角向上翻折,使点
与点
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【推荐2】已知四边形
是平行四边形,
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边上一个动点,连接
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将
翻折至
(如图1),
所在的直线与
交于点H.
(1)当点E与点D重合时(如图2),则
的长为 __________________ ;
(2)当
取最大值时,
的长为 __________________ .
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(2)当
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【推荐1】如图,菱形
的边长为2,
,将菱形纸片翻折,使点B落在对角线
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【推荐2】在
中,
,
,
,
、
分别是边
、
上的动点
将
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翻折,使点
的对应点
恰好落在边
上
若
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的长是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
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【推荐1】如图,在四边形
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【推荐2】如图,在正方形
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,过C作
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于G,交
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