如图,在规格为
的边长为1个单位的正方形网格中(每个小正方形的边长为1),
的三个顶点都在格点上,且直线m、n互相垂直.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/26/00443d0b-b441-4702-88a8-11845f4c6e02.png?resizew=197)
(1)画出
关于直线n对称的
;
(2)在直线m上作出点
,使得
的周长最小.(保留作图痕迹)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13a96e9c2e2a15130d1d56a1d0e16b72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/26/00443d0b-b441-4702-88a8-11845f4c6e02.png?resizew=197)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ee6e1d480ece7117e1f87ebf4bbeea.png)
(2)在直线m上作出点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af2cc5f8cec8c498aa12c99c04e1c97d.png)
更新时间:2023-12-26 20:29:29
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解答题-作图题
|
较易
(0.85)
【推荐1】如图,在长度为1个单位长度的小正方形组成的正方形网格中,点A、B、C在小正方形的顶点上.
(1)在图中画出与△ABC关于直线l成轴对称的A1B1C1;
(2)△A1B1C1的面积是 ;
(3)利用网格线在直线上求作一点P,使得PA+PC最小,请在直线l上标出点P位置.
(1)在图中画出与△ABC关于直线l成轴对称的A1B1C1;
(2)△A1B1C1的面积是 ;
(3)利用网格线在直线上求作一点P,使得PA+PC最小,请在直线l上标出点P位置.
![](https://img.xkw.com/dksih/QBM/2021/7/9/2760266942939136/2764789023023104/STEM/5a9236cc10214555b26c70900f98ab96.png?resizew=218)
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解答题-作图题
|
较易
(0.85)
【推荐2】如图,方格纸中每个小方格都是边长为1的正方形,我们把以格点的连线为边的多边形称为“格点多边形”,如图中四边形ABCD就是一个“格点四边形”.
(1)求图中四边形ABCD的面积;
(2)在图中的方格纸中画一个格点四边形,使该四边形与原四边形ABCD关于直线l成轴对称;
(3)P为直线l上一点,连接BP、AP,使得BP+AP最小,画出点P的位置.
(1)求图中四边形ABCD的面积;
(2)在图中的方格纸中画一个格点四边形,使该四边形与原四边形ABCD关于直线l成轴对称;
(3)P为直线l上一点,连接BP、AP,使得BP+AP最小,画出点P的位置.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/29/fe8b29b6-0c60-445c-9f62-192dd4943c70.png?resizew=270)
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解答题-作图题
|
较易
(0.85)
【推荐1】如图,已知
各顶点的坐标分别为
,
,
,请你画出
,并画出
关于y轴对称的
,并写出
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d14cd46db17d64f86660b987402503a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ec80124140bfd0645885def65b77092.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe280beba9666c98fb0be7c460dd81a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c3135fa20c32d04a270750f77c1f2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://img.xkw.com/dksih/QBM/2019/11/16/2335240125227008/2337279200378880/STEM/6d376a79f9c24001a6c5fe6bbaf9d29a.png?resizew=192)
您最近一年使用:0次
解答题-作图题
|
较易
(0.85)
【推荐2】已知如图,
在平面直角坐标系
中,其中
,试解答下列各题:
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/6/3ea3c872-bb9b-46cf-9253-15fb349540aa.png?resizew=261)
(1)作出
关于x轴对称的
;
(2)写出
三个顶点的坐标;
;
;
;
(3)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92d408a410447291132e7721ebc3be71.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/6/3ea3c872-bb9b-46cf-9253-15fb349540aa.png?resizew=261)
(1)作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ee6e1d480ece7117e1f87ebf4bbeea.png)
(2)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ee6e1d480ece7117e1f87ebf4bbeea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f51d7fc14599a657b4831a4943360451.png)
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