如图,等腰直角三角形
的直角边长与正方形
的边长均为
,边
与边
在同一条直线上,点
与点
重合,让
沿
方向运动,当点
与点
重合时停止运动.运动中两个图形重叠部分的面积
与
的长度
之间的函数关系式为__________ ,自变量
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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21-22八年级下·河北唐山·期末 查看更多[3]
河北省唐山市曹妃甸区2021-2022学年八年级下学期期末数学试题(已下线)第05讲 用二次函数解决问题-【帮课堂】2022-2023学年九年级数学下册同步精品讲义(苏科版)(已下线)第5章 二次函数(B卷·能力提升练)-【单元测试】2022-2023学年九年级数学下册分层训练AB卷(苏科版)
更新时间:2022-08-09 00:10:11
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【推荐1】如图,正方形
的顶点
,
与正方形
的顶点
,
同在一段抛物线上,且抛物线的顶点同时落在
和
轴上,正方形边
与
同时落在
轴上,若正方形
的边长为
,则正方形
的边长为________ .
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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【推荐2】如图所示,矩形
的边
在
的边
上,顶点
,
分别在边
,
上.已知
,
,
,设
,矩形
的面积为
,则
关于
的函数关系式为______ .(不必写出定义域)
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【推荐1】如图,在长方形
中,
,点P为长方形内部一点,过点P分别作
于点E,
于点F,分别以
为边作正方形
,正方形
,若两个正方形的面积之和为59,长方形
的面积为11,
,则长方形
的面积为:___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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【推荐2】如右图,把边长为1的正方形ABCD的四个角(阴影部分)剪掉,得正方形A1B1C1D1,且剩下图形的面积为原正方形面积的
,则AA1=_____ .
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【推荐1】若等腰三角形的腰长恰好是方程
的解,且它的底边长是偶数,则这个等腰三角形的周长为___________ .
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【推荐2】已知等腰
的底边
,
是腰
上一点,且
,
,则
的长为 __________________ .
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