如图,在平面直角坐标系中,
的三个顶点的坐标分别为
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/6/f5bfb51f-f6df-45ca-9c11-6235ce13b71f.png?resizew=345)
(1)画出
先向下平移1个单位长度,再向左平移2个单位长度的
,并写出点
的坐标;
(2)以原点O为位似中心,在所给的方格纸纸中(不能超出方格纸)画一个
,使它与
的相似比为
,并写出点
的坐标;
(3)在
内有一点
,按(1)与(2)的方式得到的对应点
的坐标是___________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab47bf43b2c5d6395129b80ddfbb1b24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/466e8c438084aef563c6aaeff3bca583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4f8edea2e5d4e08cf6210d0e9f3fdbb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/6/f5bfb51f-f6df-45ca-9c11-6235ce13b71f.png?resizew=345)
(1)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/97c01fdc7bc471af0b264a04aef0823e.png)
(2)以原点O为位似中心,在所给的方格纸纸中(不能超出方格纸)画一个
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84783b6ba0f36789519816101a437f46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
(3)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
更新时间:2022-11-04 09:17:03
|
相似题推荐
解答题-作图题
|
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【推荐1】如图,在由小正方形组成的
的网格中,点
,
和四边形
的顶点都在格点上.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/9/158644e0-4904-4f43-98a6-514d44d41943.png?resizew=248)
(1)平移四边形
,使其顶点
与点
重合,画出平移后的图形;
(2)把四边形
绕点
逆时针旋转
,画出旋转后的图形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/536b622da2f361e68d5394affcad70af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/9/158644e0-4904-4f43-98a6-514d44d41943.png?resizew=248)
(1)平移四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)把四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfe639eab78eafd2d40ea70aa5d3f21d.png)
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解答题-作图题
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【推荐2】如图,在正方形网格中有三角形
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/13/cbd72dd3-4462-4353-9b06-c89f182826f2.png?resizew=180)
(1)将三角形
进行平移,使得点
的对应点为点
(如图所示),画出三角形
;
(2)画出(1)中三角形
关于
中点成中心对称的图形,所画图形需用实线画出.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/13/cbd72dd3-4462-4353-9b06-c89f182826f2.png?resizew=180)
(1)将三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
(2)画出(1)中三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
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解答题-问答题
|
较易
(0.85)
【推荐1】如图,已知点
、
、
,把
向下平移3个单位,再向右平移2个单位后得到
.
![](https://img.xkw.com/dksih/QBM/2021/5/8/2716619913822208/2793101951606784/STEM/49c7d4b0-3913-4e20-8a3a-1329f87aca35.png)
(1)直接写出
,
,
三个对应点
,
,
的坐标;
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b938dafebe690ebd1109160f18046738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/532adf7eba1359539be31ba5f33236c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e5385111bbc1b26805c727f538fcb4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://img.xkw.com/dksih/QBM/2021/5/8/2716619913822208/2793101951606784/STEM/49c7d4b0-3913-4e20-8a3a-1329f87aca35.png)
(1)直接写出
![](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)
![](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)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
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解答题-作图题
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【推荐2】如图,在平面直角坐标系中,每个小方格的边长为1个单位长度,
的顶点A,B的坐标分别为
,
.
(1)点C的坐标为_______________;
(2)平移
,将点C移动到点
,其中点A的对应点为D,点B的对应点为E.
①在平面直角坐标系中画出
,并写出点D,E的坐标;
②
的面积为_______________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99cfd8d0ca0221dce6b469ae39134bc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67eb0d4e8799d71cec28e3a5800197e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/4/2eaa66bb-d8bd-4bb2-80f4-c883511b678c.png?resizew=289)
(1)点C的坐标为_______________;
(2)平移
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85787031a0f8d1cf734bdb18bb965fc0.png)
①在平面直角坐标系中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
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解答题-作图题
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【推荐1】如图,
的顶点都在网格点上,点M的坐标为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/c865d40c-8ec6-488f-8c99-03f3d653d193.png?resizew=300)
(1)以点O为位似中心,把
按2∶1放大,在y轴的左侧,画出放大后的
;
(2)点A的对应点D的坐标是_____________;
(3)
_____________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1242ec96ac54e2fd418988d5190a88.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/c865d40c-8ec6-488f-8c99-03f3d653d193.png?resizew=300)
(1)以点O为位似中心,把
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
(2)点A的对应点D的坐标是_____________;
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c257735a0badc08341c997baa800f9d5.png)
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解答题-作图题
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【推荐2】将图中的
作下列变换,画出相应的图形.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/14/47c8060c-bb5b-49b0-9aa4-f1d1baa10477.png?resizew=197)
(1)关于
轴对称的
;
(2)以
点为位似中心,将
放大到原来的2倍,得到
并写出点
的对应点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/14/47c8060c-bb5b-49b0-9aa4-f1d1baa10477.png?resizew=197)
(1)关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ee6e1d480ece7117e1f87ebf4bbeea.png)
(2)以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c6d1ae7e944c4d2b22de43083a4c306.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c578d3a17de6f47abaaeca5ab778e7f.png)
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解答题-作图题
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【推荐1】在平面直角坐标系中,
的位置如图所示,每个小正方形的边长为1,以原点
为位似中心,在第一象限内,对
进行位似变换,得到
(点
,
,
分别对应点
,
,
),且
与
的相似比为
.其中点
坐标为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/8/6478e45d-6424-4137-b4cf-73f7db0640eb.jpg?resizew=196)
(1)画出
;
(2)点
坐标为________;
(3)线段
上一点
经过变换后对应的点的坐标为________.
![](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/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](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://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35b98ac3084caebc6d9bff492e8fce6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/547ca949ea6f238f4e58dde990e0dbda.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/8/6478e45d-6424-4137-b4cf-73f7db0640eb.jpg?resizew=196)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(3)线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d9aa1d34d66a6876aa0566c8fc8b0a.png)
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【推荐2】如图,在正方形网格中,△ABC的三个顶点都在格点上,点A、B、C的坐标分别为(-2,4)、(-2,0)、(-4,1),结合所给的平面直角坐标系解答下列问题:
![](https://img.xkw.com/dksih/QBM/2020/1/26/2385256687353856/2386206478983168/STEM/22ae35afaf6e4daead1523344e34fd58.png?resizew=241)
(1)将△ABC绕O点逆时针旋转90°,得到△A1B1C1;
(2)以点P(-1,1)为位似中心,在△ABC的异侧作位似变换,且使△ABC的面积扩大为原来的4倍,得到△A2B2C2,并写出点A2的坐标.
![](https://img.xkw.com/dksih/QBM/2020/1/26/2385256687353856/2386206478983168/STEM/22ae35afaf6e4daead1523344e34fd58.png?resizew=241)
(1)将△ABC绕O点逆时针旋转90°,得到△A1B1C1;
(2)以点P(-1,1)为位似中心,在△ABC的异侧作位似变换,且使△ABC的面积扩大为原来的4倍,得到△A2B2C2,并写出点A2的坐标.
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