如图,在菱形
中,
,
,点
在边
上,且
,点
为线段
上一动点(不与点
重合),将菱形沿直线
折叠,点
的对应点为点
,当点
落在菱形的对角线上时,
的长为__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4f5eec0addba78f2e0cdfb7ecc59a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d0e504e5dd95fea4ec276ee278889ed.png)
![](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/82773737609e65dea3c5c67099f1b10d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://img.xkw.com/dksih/QBM/2019/6/13/2224857005400064/2227400847777792/STEM/0f9db557888b419491196da34b98b327.png?resizew=164)
2019·安徽合肥·一模 查看更多[2]
更新时间:2019-06-17 14:37:58
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【推荐1】在直角边分别为6cm和8cm的直角三角形中作菱形,使菱形的一个内角恰好是三角形的一个角,其余顶点都在三角形的边上,则所作菱形的边长是______ .
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名校
【推荐2】如图,在正方形
中,
,点E,F分别在
,
上,且
,过点E作
,过点F作
,
与
交于点G,连接
,则
的长为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9730fc8cb721e581d95ab4f371a64069.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6d80f4864d66bf03827059bffdc224c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7baeb8f9a161f2822e5cdb51aed3e1c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/8/335bf441-0e9b-4e1a-9b34-012a7ae8af0b.png?resizew=139)
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【推荐1】如图,已知反比例函数
、
在第一象限的图象,过
上的任意一点A,作x轴的平行线交
于B,交y轴于点C,过点A作x轴的垂线交
于D,交x轴于点E,连接
,则
=_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3a9540f8002050fc5dc42fe22c1af76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/424be0f19cb65f984169be8f8ec362e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a03841966d8142fa4a4aed023e37931.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9af91834644b94e1b023b33e15a0644.png)
![](https://img.xkw.com/dksih/QBM/2023/1/11/3150366525693952/3150668026200064/STEM/caa22b790bdf49cd8c3190de20d45e0c.png?resizew=146)
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【推荐2】如图,菱形
的边长为5,对角线
为8,以顶点
为圆心,2为半径画圆,点
在对角线上运动,当射线
与圆
相切时,
的长是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/30/50cf1822-60a6-4e7c-9375-35a81300b2fd.png?resizew=156)
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