如图,
三个顶点的坐标分别为
.
关于原点
对称的
,并写出
的坐标;
(2)在
轴上求作一点
,使
的周长最小,请画出
,并直接写出
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bde97018e8d2b7698ae82b723469a025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df2c4f20594ab1443c0d8dcce42895f3.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
更新时间:2024-03-06 19:11:34
|
相似题推荐
解答题-作图题
|
适中
(0.65)
【推荐1】如图,方格纸中每个小正方形的边长均为1个单位长度,线段
和线段
的端点均在小正方形的顶点上.
(点E、F在小正方形的顶点上),使它们构成轴对称图形;
(2)如图2,在方格纸中找点M(点M在小正方形的顶点上),使四边形
是中心对称图形,并直接写出所画四边形的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
(2)如图2,在方格纸中找点M(点M在小正方形的顶点上),使四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c4b7be903c278775a78980e7b6eea4c.png)
您最近一年使用:0次
解答题-作图题
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适中
(0.65)
【推荐2】图①、图②、图③均是4×4的正方形网格,每个小正方形的边长均为1,每个小正方形的顶点叫做格点,只用无刻度的直尺,在给定的网格中按要求画图,所画图形的顶点均在格点上,不要求写出画法,并保留作图痕迹.
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(1)在图①中画一个面积为4的只是中心对称的四边形.
(2)在图②中画一个面积为4的菱形,且邻边不垂直.
(3)在图③中画一个矩形,使其边都是无理数,且邻边不相等.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/30/5d95ea73-d1aa-4c58-971a-e5d00c8b39bb.png?resizew=307)
(1)在图①中画一个面积为4的只是中心对称的四边形.
(2)在图②中画一个面积为4的菱形,且邻边不垂直.
(3)在图③中画一个矩形,使其边都是无理数,且邻边不相等.
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐1】平面直角坐标系中,
的位置如图所示(三角形的三个顶点均在格点上).
绕点O逆时针旋转
得到
(点A,B,C的对应点分别为
);
(2)请在图中画出
关于原点O成中心对称的图形
(点A,B,C的对应点分别为
);
(3)若
,则
的度数为 ,
的长为 .
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67c2f8d68d0d9df608952469c541a65c.png)
(2)请在图中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/035733348a01d5540ef3e0c47631f558.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0db75e0d74260d832c5f511f61e52f13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a3c2320e8d4340b38bacb28a51260e4.png)
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您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
名校
【推荐2】如图,在平面直角坐标系
中,
三个顶点的坐标分别为
,
,
,
关于原点
对称的图形是
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/913e2590-fa61-41f4-9a5f-7c6220fcf941.png?resizew=313)
(1)画出
;
(2)
与
的位置关系是______;
(3)若点
是
一边上的任意一点,则点
经过上述变换后的对应点
的坐标可表示为_____.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfaba0309c471a4246ca3254a3cdaf17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5593ca86a1f7ad0cbcc801c3cb77f285.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/705143a0bc86823147f7eef209f356ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24414f4f8d6af6e0aa1425b634473d2d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/913e2590-fa61-41f4-9a5f-7c6220fcf941.png?resizew=313)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24414f4f8d6af6e0aa1425b634473d2d.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bec550c01b4f075f22ab67f5e55ed5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】如图,在
中,
,
平分
交
于
点,
分别是
上的动点,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3c0a76c094ea8bb9d49af36af3a913.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21b28f28ced0531d1df34fcf04c6c67f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a373959bb9026f8a09845c0b828bf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f7843cca6b10db8aace89936c1ca22.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/d3e29508-3ada-436d-b9e6-50f4d6907f3e.png?resizew=197)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐2】解答:
(1)如图,在方格纸中,画出
关于直线MN对称的图形
;
(2)在对称轴MN上求一点P,使得
最短.
(1)如图,在方格纸中,画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)在对称轴MN上求一点P,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51a8d10345f567e0f2daf18529d42f0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/1/6a7ed50c-7f59-4bcd-9514-2846692a39df.png?resizew=216)
您最近一年使用:0次