如图,在由边长为1个单位长度的小正方形组成的网格中,
的顶点均为格点(网格线的交点).
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/26/f3eafa6c-dcee-447e-9412-6fca68d1b157.png?resizew=211)
(1)将
绕点O顺时针旋转90°得到
,请画出
,其中点A、B分别与点
对应;
(2)以点O为位似中心,将
在点O异侧按相似比
进行放大得到
,请画出
,其中点A、B分别与点
对应;
(3)
的值为 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/26/f3eafa6c-dcee-447e-9412-6fca68d1b157.png?resizew=211)
(1)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f00ac42342a18f47cb58bc8d9cf39c5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f00ac42342a18f47cb58bc8d9cf39c5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/741b8bc5f976c516ab79e9579ba18487.png)
(2)以点O为位似中心,将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a0e6601cde5ea61553dd3674e248d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a83faf535663e6882c11483e8b761273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a83faf535663e6882c11483e8b761273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9412486f7ee3869a3e3bd06ab3573a1.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2e64431e212c0119615f4869473e650.png)
更新时间:2024-02-26 20:08:30
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【推荐1】如图,在边长为1的小正方形组成的网格中,四边形ABCD的顶点均在格点上.
(2)求∠ACD的度数;
(3)求四边形ABCD的面积.
(2)求∠ACD的度数;
(3)求四边形ABCD的面积.
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解答题-计算题
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【推荐2】如图,网格中的每个小正方形的边长都是1,每个小正方形的顶点叫做格点,点A,B,C均落在格点上.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/24/1df9ff11-8125-43e2-b242-c9824d13fa3e.png?resizew=180)
(1)计算线段AB的长度 ;
(2)判断△ABC的形状 ;
(3)写出△ABC的面积 ;
(4)画出△ABC关于直线l的轴对称图形△A1B1C1.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/24/1df9ff11-8125-43e2-b242-c9824d13fa3e.png?resizew=180)
(1)计算线段AB的长度 ;
(2)判断△ABC的形状 ;
(3)写出△ABC的面积 ;
(4)画出△ABC关于直线l的轴对称图形△A1B1C1.
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解答题-作图题
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【推荐1】如图,平面直角坐标系内,小正方形网格的边长为1个单位长度,△ABC的顶点A的坐标为(﹣3,4).
![](https://img.xkw.com/dksih/QBM/2020/1/19/2380243497123840/2380622481768448/STEM/6d0b776ad08e4eb08382d360b1a21497.png?resizew=228)
(1)画出△ABC关于y轴的对称图形△A1B1C1,并写出A1的坐标;
(2)画出将△ABC绕原点O逆时针方向旋转90°得到的△A2B2C2,并写出A2的坐标;
(3)求出(2)中点A所经过的路径的长度.
![](https://img.xkw.com/dksih/QBM/2020/1/19/2380243497123840/2380622481768448/STEM/6d0b776ad08e4eb08382d360b1a21497.png?resizew=228)
(1)画出△ABC关于y轴的对称图形△A1B1C1,并写出A1的坐标;
(2)画出将△ABC绕原点O逆时针方向旋转90°得到的△A2B2C2,并写出A2的坐标;
(3)求出(2)中点A所经过的路径的长度.
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解答题-作图题
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【推荐2】在如图所示的平面直角坐标系中(每个小方格都是边长为1个单位长度的正方形),解答下列问题:
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/7/6b37f8d0-e9e9-4c34-9b34-360ab996d31c.png?resizew=186)
(1)画出与
关于y轴对称的
;
(2)画出以
为旋转中心,将
顺时针旋转
后的
;
(3)连接
,直接写出
的面积.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/7/6b37f8d0-e9e9-4c34-9b34-360ab996d31c.png?resizew=186)
(1)画出与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)画出以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18d542d6a10970a4f6ca6a495e6b9c1c.png)
(3)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/473913c0887bb64d386f4c02f1853452.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1d9e517daf29d14b8dc3ae0522e1065.png)
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解答题-作图题
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【推荐1】已知:
在直角坐标平面内,三个顶点的坐标分别为
(正方形网格中每个小正方形的边长是一个单位长度).
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/24/e842739b-8f83-422d-b2ed-980bb5305800.png?resizew=204)
(1)画出△ABC向下平移4个单位长度得到的
,点C1的坐标是_____________;
(2)以点B为位似中心,在网格内画出
,使
与
位似,且位似比为2:1,
面积是______________平方单位.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8cd912e9ddf08b6ec8c7ca1529de1cf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/24/e842739b-8f83-422d-b2ed-980bb5305800.png?resizew=204)
(1)画出△ABC向下平移4个单位长度得到的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)以点B为位似中心,在网格内画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
您最近一年使用:0次
解答题-作图题
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(0.85)
【推荐2】如图,在平面直角坐标系中,点
的坐标分别是
,
.
(1)将
绕点
逆时针旋转
得到
,点
,
对应点分别是
,
,请在图中画出
,并写出
,
的坐标;
(2)以
点为位似中心,将
作位似变换且缩小为原来的
,在网格内画出一个符合条件的
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff92ef23dd31bb91ece0b416b231fd40.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4e2d42d9b5b0451849ce54fb9b9cf77.png)
(1)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd2981bf2261343f905ec1b5355a3c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(2)以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/159ba4622fea8b8e38ff3b9064f203c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c89d23030c7908b4f4c450cf376e33fd.png)
![](https://img.xkw.com/dksih/QBM/2020/3/6/2413863271579648/2414517935366144/STEM/f8fae3e784864f11a4b4a7b0315d07af.png?resizew=227)
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