在如图所示的
的方格中,画出3个面积小于9且大于1的不同的正方形(用阴影部分表示),而且所画正方形的顶点都在方格的顶点上,并写出相应正方形的边长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/777d8fccf0cf8b55a68488fe48b78744.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/2/29f65178-113a-4f21-b810-82ce82d0c556.png?resizew=258)
更新时间:2023-12-10 08:27:49
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解答题-作图题
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【推荐1】如图1,依次连接2×2方格四条边的中点,得到一个阴影正方形,设每一方格的边长为1个单位,则这个阴影正方形的边长为
.
(1)图1中阴影正方形的边长为 ;点P表示的实数为 ;
(2)如图2,在4×4方格中阴影正方形的边长为a.
①写出边长a的值.
②请仿照(1)中的作图在数轴上表示实数﹣a+1.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
(1)图1中阴影正方形的边长为 ;点P表示的实数为 ;
(2)如图2,在4×4方格中阴影正方形的边长为a.
①写出边长a的值.
②请仿照(1)中的作图在数轴上表示实数﹣a+1.
![](https://img.xkw.com/dksih/QBM/2022/1/5/2887758534746112/2889388967665664/STEM/bb825164-429a-4a24-9134-aacf0d0916fa.png?resizew=282)
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解答题-计算题
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【推荐2】交通警察通常根据汽车刹车后车轮划过的距离来估测车辆行驶的速度,所依据的经验公式是
,其中
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表示刹车后车轮划过的距离(单位:
),
表示摩擦系数,在某次交通事故中调查测得
,
,若此路段限速
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e00f40396e914d1d9955bd7785f1f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1d8b1d8ffa9a511930df8f44bce9c83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9842d1395891fd3d23f5a82a0a578e6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd9081c24ec98bcb4bb5261ed672324d.png)
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解答题-问答题
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【推荐1】如图,在
网格中,线段
的端点是格点(网格线的交点).
(1)以
为对角线,画一个格点平行四边形
;
(2)以
为一边,画一个格点菱形
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23f3b42cd6069f0e461035e76459ee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/25/76ffab6c-c42b-4654-b909-d9cf8dbe2b72.png?resizew=221)
(1)以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c593ebdb2f1934a0cb56f8c44f454f8.png)
(2)以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
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解答题-作图题
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【推荐2】如图,在小正方形的边长均为
的方格纸中,有线段
,点
、
均在小正方形的顶点上.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/20/cb037925-5dc9-4a78-8ac5-ad28420b7e6a.png?resizew=361)
(1)在图1中画一个以线段
为一边的平行四边形
,点
、
均在小正方形的顶点上,且平行四边形
的面积为
;
(2)在图2中以
为边画一个直角
,点
在小正方形的顶点上,满足
的面积为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/20/cb037925-5dc9-4a78-8ac5-ad28420b7e6a.png?resizew=361)
(1)在图1中画一个以线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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(2)在图2中以
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