如图,将书页的一角斜折过去,使角的顶点A落在
处,
为折痕,
平分
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4db07c6ce6c8b0e96a3470c6a3491334.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/456eca507c25b85eee72e2d4d16ff971.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/658f819969410327e70ee9c38e299d11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4db07c6ce6c8b0e96a3470c6a3491334.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/14/706134e2-a509-4e86-abc3-ff3edb990673.png?resizew=215)
更新时间:2023-09-13 15:26:41
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填空题
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较易
(0.85)
【推荐1】如图①,在矩形纸片ABCD中,AB=5,BC=3,先按图②操作:将矩形ABCD沿过点A的直线折叠,使点D落在边AB上的E处,折痕为AF.再按图③操作:沿过点F的直线折叠,使点C落在边EF上的H处,折痕为FG.则阴影部分图形的面积是__________ .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/85d55680-855b-4e18-9f00-ea5eba473c6b.png?resizew=314)
您最近一年使用:0次
填空题
|
较易
(0.85)
【推荐2】如图,在矩形
中,
,
,将
沿
翻折,使得点D落在
边上
处,则
(1)
的长是______ ;
(2)折痕
的长是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f26ad70d2b3aac8604834d57dfc59bb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c771a4feb150ad9cff8d70431c97eb17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b3bd5e6bc2a0a277d279bb01af9584.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8ba89e83329983cfadbfcdda151aaa3.png)
(2)折痕
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/22/60f4a3d3-f8e5-4448-ada5-a4365f8defb9.png?resizew=170)
您最近一年使用:0次