将一张长方形的纸按如图所示的方式折叠,使得
,
折叠后的
,
落在同直线上,其中
,
为折痕,则
的大小为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12daf5fea89631b84f896939c503d88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e0f0ccc8492a0ccf1eee24867060643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e359bc7a47c723102813220ef7283177.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/7/bb8ac721-bad7-4858-89a5-3acdd1dfaf14.png?resizew=152)
更新时间:2023-02-06 12:33:41
|
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【推荐1】把一张长方形纸片折叠,如图所示,若
,则
的度数为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0440e79b4b817a2c7d9d05089962ae72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/2/8e741a9a-c790-4d89-92b6-747c6600a47d.png?resizew=92)
您最近一年使用:0次
填空题
|
较易
(0.85)
名校
【推荐2】如图,将一张长方形纸片
沿
折叠,使顶点
,
分别落在点
,
处,
交
于点
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f7947be45367e6940f7f682a5924f6f.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f7947be45367e6940f7f682a5924f6f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/25/c67d2348-19cd-47ff-bd10-39bc55f5328b.png?resizew=177)
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