已知:如图,矩形
的一条边
,将矩形
折叠,使得顶点
落在
边上的
点处,折痕为
.
;
(2)若
与
的面积比为
,求边
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69a485cbd0db39582d6b3b586ace216.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29eaf0ed8d20d6cac5d614570a5e8267.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac8fe4026f1a0745ab9aa9fe64f0e482.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa9c934d84feba963335cc7edf01610e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
更新时间:2018-08-12 22:51:24
|
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解答题-问答题
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适中
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【推荐1】如图,将矩形的一边AE折叠使点E落在CD边的点F处,AC=5cm,CD=13cm,
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/19/6e662fc4-bbd4-4627-a0e3-454142b06fff.png?resizew=301)
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【推荐2】已知:如图,在Rt△ABC中,∠C=90°,沿过B点的一条直线BE折叠这个三角形,使C点与AB边上的一点D重合.点D恰为AB的中点,DE=2,求△ABC的周长.
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【推荐1】如图,在矩形
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上一个动点,以直线
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(1)直接写出点
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea7534197814da6673492dfe685d95d5.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce6c0e9de83f2e64ae33609fc08459d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/3/22f8f844-be16-48a9-a72d-fb1face014f2.png?resizew=548)
(1)直接写出点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45aa9dc428cdd15252b9378fe07b8baf.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5db52de8e66d906aa21a1c437dba325.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
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解答题-问答题
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【推荐2】如图1,矩形纸片ABCD中,AB=4,BC=4
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![](https://img.xkw.com/dksih/QBM/2012/2/27/1573348783611904/1573348848771072/STEM/4e9dd68ef32b4aab8aa0b32f9bb11845.png)
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解答题-证明题
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适中
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【推荐1】如图矩形OABC中,点B的坐标(a,b);点P为线段BC上的一动点(与点B,点C不重合),过动点P的反比例函数y=
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abb3a62e46296c417261156b51ec6b4.png)
![](https://img.xkw.com/dksih/QBM/2022/1/14/2894083531882496/2919125719105536/STEM/13de8166-8453-4308-98c3-9d6f96693054.png?resizew=198)
(1)求证:四边形ADPC为平行四边形;
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解答题-作图题
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适中
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/28/8aa5cb85-b783-44b0-bc7f-f51991a618d6.png?resizew=103)
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