如图,分别以矩形ABCD的两条对称轴为x轴和y轴建立平面直角坐标系,若点A的坐标为(4,3).
(1)写出矩形的另外三个顶点B,C,D的坐标;
(2)求该矩形的面积.
(1)写出矩形的另外三个顶点B,C,D的坐标;
(2)求该矩形的面积.
更新时间:2019-01-25 22:02:52
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【知识点】 坐标与图形
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解答题-作图题
|
较易
(0.85)
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【推荐1】如图,在平面直角坐标系中,
的三个顶点都在格点上.
(1)写出
、
、
三点的坐标;
(2)画出
关于
轴对称的
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(1)写出
![](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)
(2)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://img.xkw.com/dksih/QBM/2020/11/25/2600632244281344/2606210954723328/STEM/3e46d1b6-2c0d-444e-a9ea-b8651fdb8baf.png)
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解答题-作图题
|
较易
(0.85)
【推荐2】在平面直角坐标系中,已知点
,
,
.将三角形
向右平移4各单位,再向下平移2个单位长度,得到三角形
.
(1)请根据题意在平面直角坐标系中画出三角形
.
(2)直接写出点
、
、
的坐标:
(___________,___________)
(___________,___________)
(___________,___________)
(3)直接写出
的面积为___________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27f9b02c9137dad05fb9ced1f0b9683.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38bfd5f61e9daf11980d8b60bba3f46f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8767aa08dcca4a57341b3d391b0ec613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/9/a52f1bd6-ae95-48b9-904b-f666c5130491.png?resizew=221)
(1)请根据题意在平面直角坐标系中画出三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
(2)直接写出点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(3)直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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