已知线段
,用平移、轴对称或旋转完成以下各题:
![](https://img.xkw.com/dksih/QBM/2021/10/2/2820495183962112/2820520276148224/STEM/584238f4-9e6d-427e-9575-f7b31b092090.png?resizew=133)
(1)画出一个以这条线段为一边的正方形;
(2)画出一个以这条线段为一边的等边三角形;
(3)画出一个以这条线段为一边,一个内角是
的菱形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/2021/10/2/2820495183962112/2820520276148224/STEM/584238f4-9e6d-427e-9575-f7b31b092090.png?resizew=133)
(1)画出一个以这条线段为一边的正方形;
(2)画出一个以这条线段为一边的等边三角形;
(3)画出一个以这条线段为一边,一个内角是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
21-22九年级上·全国·课后作业 查看更多[1]
(已下线)【人教版课时练习】23.3 课题学习 图案设计
更新时间:2021-10-02 09:06:06
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解答题-问答题
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【推荐1】已知:线段a.求作:正方形ABCD,使其对角线AC=a.
![](https://img.xkw.com/dksih/QBM/2022/3/8/2931625380823040/2935520974438400/STEM/96818128-b5d2-4043-8a80-941588f120a9.png?resizew=177)
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解答题-证明题
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【推荐2】如图,在正方形
中,点
在
边的延长线上,点
在
边的延长线上,且
,连接
和
相交于点
.
求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf857e03d4320c999d328fd657c2d412.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04f8eebda19eded2b059774a8c2666c3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/30/b1afa6c8-c4d8-4711-9dec-1c7ac62733d6.png?resizew=140)
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解答题-作图题
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【推荐1】如图,在
的网格中,每个小正方形的边长为1个单位,点
、
在格点(小正方形的顶点)上请在各网格中画出相应的符合条件的图形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/954253b16a82489bb0e152543428c68a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/2019/11/13/2333055511789568/2333182334550016/STEM/4ace68255c974e58b9cf9cb9de133d6f.png?resizew=433)
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【推荐2】如图,
的顶点都在方格纸的格点上.将△ABC向左平移2格,再向上平移4格.请在图中画出平移后的
,并作出
边
上的高
,再写出图中与线段
平行的线段.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/884e4bec1a5258d57d8084893d6989bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/884e4bec1a5258d57d8084893d6989bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc890342ba48792f572f99e3f8c033a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/706e346adc5bd044a913e590790ca959.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/10/e554e24c-1fdf-4e2d-955a-367f95a7b58d.png?resizew=178)
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解答题-作图题
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【推荐1】如图,在边长为1个单位长度的小正方形组成的
网格中,
的顶点均在格点上,直线
经过
两点.
是一个轴对称图形,其对称轴为直线
,请将四边形
补充完整;
(2)将
缩小后得到
(点
均在格点上),则
与
的比值为______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23f3b42cd6069f0e461035e76459ee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098a3e7d1f1890863b7483a98b618119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ee6e1d480ece7117e1f87ebf4bbeea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76d100e7830d2e9d27bdccb181c79b65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb0628cecbfc98d390e5447d52414e8.png)
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解答题-作图题
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【推荐2】如图是由
个边长为
个单位长度的小正方形拼成,请你在图上添加一个小正方形,使添加后的图形是一个轴对称图形,要求画出三种.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://img.xkw.com/dksih/QBM/2020/4/5/2434920076664832/2435503037014016/STEM/a6ffa914311e4c4698e1f620d34cb2d2.png?resizew=410)
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解答题-作图题
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【推荐1】如图,在每个小正方形的边长为
个单位的网格中,
的顶点均在格点(网格线的交点)上.
(1)画出
关于
轴对称的
(点
,
,
分别为
,
,
的对应点);
(2)将
绕原点
逆时针旋转
得到
,画出
(点
,
,
分别为
,
,
的对应点).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/22/853a636b-14e2-4c14-a519-f9f6611cae35.png?resizew=230)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.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)
![](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)
(2)将
![](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/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](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/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.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)
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解答题-作图题
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【推荐2】在平面直角坐标系中,△ABC的三个顶点在格点上(每个方格的边长均为1个单位长度).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/6/499e219d-7755-4d47-8876-9f23d6d9c3b2.png?resizew=268)
(1)请画出△ABC关于原点对称的图形△A1B1C1
(2)将△ABC绕点O逆时针旋转90°,画出旋转后得到的△A2B2C2
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/6/499e219d-7755-4d47-8876-9f23d6d9c3b2.png?resizew=268)
(1)请画出△ABC关于原点对称的图形△A1B1C1
(2)将△ABC绕点O逆时针旋转90°,画出旋转后得到的△A2B2C2
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