在平面直角坐标系中,
三个顶点的坐标分别为
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/7/08e840b1-70cd-4564-ad29-3af786a3974b.png?resizew=300)
(1)在图中画出
关于y轴的对称图形
,并写出
点的坐标;
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d521c9bf37ce287bc559b016d79e1101.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32f693b70588a62fda394979988e94b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6233d52ea77df3ffb9b7dbd84f556d37.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/7/08e840b1-70cd-4564-ad29-3af786a3974b.png?resizew=300)
(1)在图中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
更新时间:2024-03-08 07:07:56
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解答题-作图题
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【推荐1】如图,图1、图2都是由边长为1的小菱形构成的网格,已有两个小菱形涂上了黑色,请你再涂黑两个小菱形,使得整个涂色部分图形满足下列条件:
(1)图1中,整个涂色部分图形为轴对称图形,但不是中心对称图形;
(2)图2中,整个涂色部分图形为中心对称图形,但不是轴对称图形.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/29/0ac27cde-7e97-4ae9-a96e-b21f5028236d.png?resizew=291)
(1)图1中,整个涂色部分图形为轴对称图形,但不是中心对称图形;
(2)图2中,整个涂色部分图形为中心对称图形,但不是轴对称图形.
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【推荐2】在如图所示的正方形网格中,已有两个正方形涂黑,请再将其中的一个空白正方形涂黑,使整个图形是一个轴对称图形.(要求:①画出4种不同的补充完整的轴对称图形;②画出补充完整轴对称图形的一条对称轴;③每个图形所画对称轴是不同的直线)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/9/035b0310-cffb-4f5a-a6bf-05682c295aba.png?resizew=564)
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【推荐1】如图,在平面直角坐标系
中,
的三个顶点的坐标分别是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/6bee2634-839e-491b-8229-ee5207738c00.png?resizew=181)
(1)画出
关于y轴对称的图形
;
(2)写出
、
、
的坐标(直接写出答案)
______;
______;
______;
(3)直接写出
的面积______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663e2a3c6f6988e81c4ffcf1bddd1c4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2157b41548f02a86a438e63238719841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d1a429ca05fd63d80b5feaba0d287f2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/6bee2634-839e-491b-8229-ee5207738c00.png?resizew=181)
(1)画出
![](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/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.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)直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ee6e1d480ece7117e1f87ebf4bbeea.png)
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【推荐2】如图,在平面直角坐标系中,A(﹣4,1),B(﹣1,2),C(﹣2,3).
(1)作△ABC关于y轴对称的△A1B1C1;
(2)写出点B、点C关于x轴对称的点的坐标;
(3)求△A1B1C1的面积.
(1)作△ABC关于y轴对称的△A1B1C1;
(2)写出点B、点C关于x轴对称的点的坐标;
(3)求△A1B1C1的面积.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/e9e0134c-750d-4590-8d03-47aaf9c526db.png?resizew=218)
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解答题-作图题
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【推荐1】在如图的方格纸中,每个小方格都是边长为1的正方形,
的三个顶点都在格点上(每个小方格的顶点叫格点).
(1)将
向上平移4格,再向左平移3格得到
,画出
.
(2)连接
,过点A作
的平行线.
(3)已知
,直接写出点B到直线
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/4/e88e5525-847d-4e49-b4c9-18aec5c10e17.png?resizew=200)
(1)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d39d040c418bb3d2e002020dd3311c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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【推荐2】如图,在所给网格中完成下列各题:
(1)将
向下平移5个单位得
,画出平移后的
;
(2)画出
关于直线
对称的
;
(3)
的面积是 .
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/29/a27c8609-d01c-4386-a226-5444f8f9eec6.png?resizew=236)
(1)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
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