如图,在平面直角坐标系中,已知
三个顶点的坐标分别为
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/2701b78f-dcbd-44e3-8347-cb46d571df16.png?resizew=246)
(1)画出
绕点
顺时针旋转
后得到的△
;
(2)以原点
为位似中心,在图中画出将△
放大为原来的2倍后的△
,并写出
,
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1415e415ec7678b962af22b752faeea8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/184fadeb45ed3632d30b231a3fdf0a06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88dc77a2f5276aca07cb23ba75b9b673.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1a9821a00b71f6b7d7a76d91b3f810.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/2701b78f-dcbd-44e3-8347-cb46d571df16.png?resizew=246)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1415e415ec7678b962af22b752faeea8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/701f3b0e2bedfe5195443459072d798e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab9b646ebf6c923290ca10e56f89085.png)
(2)以原点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/701f3b0e2bedfe5195443459072d798e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab9b646ebf6c923290ca10e56f89085.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6676c998230ed0cc8b26f64a0d6a2fa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
更新时间:2022-10-25 20:09:13
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相似题推荐
解答题-作图题
|
适中
(0.65)
【推荐1】如图,画出△ABC绕点O顺时针旋转60°得到的△
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1264a2e3609e1c274acb89b5ea5019.png)
![](https://img.xkw.com/dksih/QBM/2019/6/14/2225498723180544/2225579293810689/STEM/3594c4d41f2d49b19d15e44d319c21f0.png?resizew=76)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐2】三个顶点A,B,C在平面直角坐标系中位置如图所示.将△ABC绕C点顺时针旋转90°,画出旋转后的△A2B2C2,并写出A2的坐标.
![](https://img.xkw.com/dksih/QBM/2022/1/13/2893582672257024/2949657813663744/STEM/93158e53-d162-4904-bcb2-5dca19489da4.png?resizew=288)
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解答题-作图题
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【推荐1】如图,方格纸中的每个小方格都是边长为1个单位长度的正方形,△ABC的顶点都在格点上,建立平面直角坐标系.
(1)以原点O为位似中心,将△ABC缩小,使变化后得到的新三角形与原三角形的位似比为1:2,请在平面直角坐标系中画出新三角形;
(2)在△ABC中有一个点P(2,7),则变换后P的对应点的坐标为 .
(1)以原点O为位似中心,将△ABC缩小,使变化后得到的新三角形与原三角形的位似比为1:2,请在平面直角坐标系中画出新三角形;
(2)在△ABC中有一个点P(2,7),则变换后P的对应点的坐标为 .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/23/c618f2e8-2c4f-4aa7-88d0-ba542fabe457.png?resizew=288)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐2】如图,在平面直角坐标系中,
的顶点坐标分别为
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/4/1effdc7c-4179-4c51-ab7f-0f651f5023c5.png?resizew=176)
(1)请以原点
为位似中心,画出
,使它与
的相似比为
,变换后点
、
的对应点分别为点
、
,点
在第一象限,并写出点
坐标______;
(2)若
为线段
上的任一点,则变换后点
的对应点
的坐标为_______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d1285b0c1e6048791195ea2451b43c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed7ea3a28a475a65cbfbb38c7a0a8f3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43c55c455706bb15cab8961836e0a9d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f046807d5a573f652d29757af6f48a57.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/4/1effdc7c-4179-4c51-ab7f-0f651f5023c5.png?resizew=176)
(1)请以原点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb08713fd3447189a98c7178545c3a7a.png)
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![](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/71969be1c7b26042d844efee579ea6e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dd000d4dda06cc3f6dfe01e7cb6262.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec7d6e51084e36b5195cecead3d886a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71969be1c7b26042d844efee579ea6e1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9638078baf5e13090223a924147025cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐1】如图,已知
在平面直角坐标系中,点
、
、
.请按如下要求画图:
绕点
逆时针旋转
得到
,请画出
;
(2)以点
为位似中心,位似比为
,将
在位似中心的异侧进行放大得到
,请画出
;
(3)
内部一点
的坐标为
,写出
在
中的对应点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc718377b6f732cf050adadc0b8853e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6f3aec1dc12dc085258842c804e597b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a65d8ff9318909d18b6e1c76f90d61f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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(2)以点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbe103f073845122c66f22dcb14b711f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b104090ea2ac34be58a76a4e0e95cb3.png)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐2】如图,在正方形网格中,△TAB 的顶点坐标分别为 T(1,1)、A(2,3)、B(4,2).
(1)以点 T(1,1)为位似中心,在位似中心的 同侧将△TAB 放大为原来的 3 倍,放大 后点 A、B 的对应点分别为 A'、B',画出△TA'B':
(2)写出点 A'、B'的坐标:A'( )、B'( );
(3)在(1)中,若 C(a,b)为线段 AB 上任一 点,则变化后点 C 的对应点 C'的坐标为 ( ).
(1)以点 T(1,1)为位似中心,在位似中心的 同侧将△TAB 放大为原来的 3 倍,放大 后点 A、B 的对应点分别为 A'、B',画出△TA'B':
(2)写出点 A'、B'的坐标:A'( )、B'( );
(3)在(1)中,若 C(a,b)为线段 AB 上任一 点,则变化后点 C 的对应点 C'的坐标为 ( ).
![](https://img.xkw.com/dksih/QBM/2019/8/4/2261438056529920/2262097803968512/STEM/459d45a94e68419bbe7e4bd47188dcdd.png?resizew=263)
您最近一年使用:0次