如图,每个小方格都是边长为1个单位长度的小正方形.
经过旋转后得到格点三角形
,则旋转中心是______(填序号)
(2)说明三角形
是由三角形
经过每样的平移得到的?
(3)画出三角形
关于直线
成轴对称的三角形
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
(2)说明三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24dc97d6060d7bdcd077a4803545ec77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(3)画出三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f19a7f23008f24f61ff9de588c00be.png)
更新时间:2023-07-04 12:21:13
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解答题-作图题
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【推荐1】如图,三角形ABC三个顶点的坐标分别是A(4,3),B(3,1),C(1,2),三角形ABC内任意一点M(m,n).
(1)将三角形ABC平移得到三角形A1B1C1,点C对应点C1(4,4),请画出三角形A1B1C1,并写出A1的坐标.
(2)若三角形PQR是三角形ABC经过某种变换后得到的图形,点A,B,C的对应点分别是P,Q,R,观察变换前后各对应点之间的关系,则点M的对应点N的坐标为( , )(用含m,n的式子表示).
(1)将三角形ABC平移得到三角形A1B1C1,点C对应点C1(4,4),请画出三角形A1B1C1,并写出A1的坐标.
(2)若三角形PQR是三角形ABC经过某种变换后得到的图形,点A,B,C的对应点分别是P,Q,R,观察变换前后各对应点之间的关系,则点M的对应点N的坐标为( , )(用含m,n的式子表示).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/f05eb0ac-774b-4e9b-a924-e6f20800bdac.png?resizew=317)
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解答题-作图题
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名校
【推荐2】如图,平面直角坐标系中,已知点
,
,
,
是
的边
上任意一点,
经过平移后得到
,点
的对应点为
.
,
,
的坐标;
(2)在图中画出
;
(3)写出
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c058a8ba318315dde9c5a0392944b4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f855bbeb00d652786e768bc4fa64d74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49dd31773f55719ebd91ed3389d0de68.png)
![](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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24414f4f8d6af6e0aa1425b634473d2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51e495827270e9d939b8dca960353129.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)在图中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24414f4f8d6af6e0aa1425b634473d2d.png)
(3)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f91e4dc0bf7f57dd4ee6212c323e20e.png)
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解答题-作图题
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【推荐1】如图,在平面直角坐标系中,
的三个顶点的坐标分别是
,
,
.
(1)请画出与
关于y轴对称的
,并写出点
的坐标;
(2)在(1)的条件下,画出与
关于直线l对称的
;
(3)在(2)的条件下,若点
在
的内部,则点
在
中对应点
的坐标是 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fadc9a19de13ca7688ca93f0c70a8a1.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/27/64499098-d768-43ef-a1b4-5358fbf7c40e.png?resizew=207)
(1)请画出与
![](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/b1241216f3c1cb5e73043dd1037f556d.png)
(2)在(1)的条件下,画出与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
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(3)在(2)的条件下,若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/909dcd1753dc8eacccfd76a531871087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
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解答题-问答题
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【推荐2】如图,在正方形网格中,每个小正方形的边长为1,
的顶点
,
的坐标分别为
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/29/f537cc3d-9413-472c-a628-e55ee70281cd.png?resizew=225)
(1)请在网格平面内作出平面直角坐标系,并作出
关于
轴对称的
(
,
,
的对应点分别为
,
,
);
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51495a9a34f05e0ad0c920b9c5c9c842.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b70cf5332eb0b497a9188fafaa092d74.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/29/f537cc3d-9413-472c-a628-e55ee70281cd.png?resizew=225)
(1)请在网格平面内作出平面直角坐标系,并作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ee6e1d480ece7117e1f87ebf4bbeea.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/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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解答题-问答题
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【推荐1】如图,四边形
经过旋转后与四边形
重合.
![](https://img.xkw.com/dksih/QBM/2021/10/20/2833509692874752/2841836578979840/STEM/86ba5adff4734178bf5587dd4ee7cbcc.png?resizew=161)
(1)指出这一旋转的旋转中心和旋转角;
(2)写出图中相等的线段和相等的角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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(1)指出这一旋转的旋转中心和旋转角;
(2)写出图中相等的线段和相等的角.
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解答题-作图题
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【推荐2】如图,平面直角坐标系中,有
,
,
,
,
,已知
是由
旋转得到的.
![](https://img.xkw.com/dksih/QBM/2021/6/24/2749966965121024/2750025236357120/STEM/634bee8f-da4f-4661-8875-b28eb3813cfe.png)
(1)旋转中心坐标是_________,旋转角度是________度;
(2)以(1)中的旋转中心为中心,分别画出
顺时针旋转
、
的三角形
和
;
(3)请直接写出图中以C、
、
、
顶点的四边形的形状:____________;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6c5483b55e3d43ff4acd9703587804b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/2021/6/24/2749966965121024/2750025236357120/STEM/634bee8f-da4f-4661-8875-b28eb3813cfe.png)
(1)旋转中心坐标是_________,旋转角度是________度;
(2)以(1)中的旋转中心为中心,分别画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6c5483b55e3d43ff4acd9703587804b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfe639eab78eafd2d40ea70aa5d3f21d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3e80a6eb02e3f45517320321d369157.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43e4913471d5f0f11b491857a06146f1.png)
(3)请直接写出图中以C、
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab94459e87c666facddbe1a23ae1899d.png)
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