如图,在矩形ABCD中,线段EF在AB边上,以EF为边在矩形ABCD内部作正方形EFGH,连接AH,CG.若
,
,
,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267ace52b64e1e7dfc5211e033255b7d.png)
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![](https://img.xkw.com/dksih/QBM/2022/4/26/2973636048928768/2979263343288320/STEM/e0202ad7-5215-45ef-9c96-b8e58bbc9926.png?resizew=133)
2022·浙江·一模 查看更多[7]
2022年浙江省杭州市钱塘区九年级中考一模数学试题(已下线)专题1.12 正方形的性质与判定(拓展篇)(专项练习)-2022-2023学年九年级数学上册基础知识专项讲练(北师大版)(已下线)专题1.23 特殊平行四边形“将军饮马”专题(培优篇)(专项练习)-2022-2023学年九年级数学上册基础知识专项讲练(北师大版)湖北省咸宁市嘉鱼县2021-2022学年八年级下学期期末数学试题广西壮族自治区南宁市第三中学2021-2022学年八年级下学期期末数学试题(已下线)期末高频压轴必杀题-2022-2023学年九年级数学上册《同步考点解读·专题训练》(北师大版)广西南宁市高新区民大中学2022-2023学年八年级下学期3月月考数学试题
更新时间:2022-05-14 15:49:41
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【推荐2】在矩形
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沿
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落在点
处.
(1)如图1,点
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与
交于点
.
①
的长为______ ;
②将
剪下后展开,得到的四边形是______ ;
(2)如图2,连接
.当
是直角三角形时,
的长为______ .
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(1)如图1,点
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①
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②将
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【推荐1】如图,一副三角板如图
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旋转,如图
,在旋转过程中,当
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【推荐2】如图,在等边
中,
,
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,连接
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为腰向右作等腰
,
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的中点
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的长是______ .
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【推荐1】如图,AD=8,CD=12,点E为矩形纸片的边AB上一点,小华将△ADE沿着DE折叠至△A′DE,线段DE、射线DA′分别与线段AC交于M、N,在折叠过程中,小华发现△DMN的形状随着AE长度的变化而变化,当△DMN为直角三角形时,AE的长为___________________ .
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【推荐2】如图,在矩形
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,
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,
,
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上,从点
至点
运动,连接
,以
为边作等边
,点
和点
分别位于
两侧.
运动到点
时,
的长为______ ;
(2)点
在线段
上从点
至点
运动过程中,
的最小值为______ .
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真题
【推荐1】如图,四边形
是边长为2的正方形,点E是边
上一动点(不与点B,C重合),
,且
交正方形外角的平分线
于点F,交
于点G,连接
,有下列结论:
①
;
②
;
③
;
④
的面积的最大值为1.
其中正确结论的序号是_____________ .(把正确结论的序号都填上)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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①
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②
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③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/058f87bd0d2627eb8490de06775b3973.png)
④
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其中正确结论的序号是
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【推荐2】如图①,在正方形ABCD中,点E为DC边的中点,点P为线段BE上的一个动点.设
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