2024九年级下·上海·专题练习
1 . 请你在如图的正方形格纸中,画出线段
关于点
成中心对称的图形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
您最近一年使用:0次
2 . 如图,在平面直角坐标系中,
三个顶点的坐标分别为
,
,
,将
绕点
逆时针旋转
后,点
,
,
分别落在点
,
,
处.
(不写画法),其中点
的坐标是__________;
(2)求过
、
两点的直线解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1a9821a00b71f6b7d7a76d91b3f810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c9ece4ff94b2b1c4cc7ee25000f996f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/403e9c8769f452f0c9e69a178b3c0cb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd93c18ae02dfb0345608b1cb475664.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
(2)求过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
您最近一年使用:0次
3 . 如图,在正方形
中,
是正方形内一点,连接
、
、
,
绕着点
逆时针旋转
后的三角形,其中
点的对应点为
点(不写作法,保留作图痕迹);
(2)在(1)的条件下,当
,
时,求
的值.
![](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/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f850c705372b8a85489505da53239fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(2)在(1)的条件下,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d5ac438743e1086f8bbfe461e4220c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98edef8531283edd45ec598a7a43f4d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce23690ed995b8b87b687e053a768b2.png)
您最近一年使用:0次
4 . 如图,在10×6的正方形网格中,每个小正方形的边长为1个单位长度,三角形
的顶点都在格点上.在所给网格图(每小格均为边长是1的正方形)中完成下列各题:
(1)画出格点三角形
(顶点均在格点上)关于直线
对称的三角形
;
(2)求三角形
的面积;
(3)在
上画出格点P,使得三角形
以P为旋转中心,所得的三角形
的顶点都在10×6的正方形网格区域内的格点上. (如果有多种情况,用
、
、
……区别表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/18/d469fb77-da1d-4495-ac53-dfecf23a012e.png?resizew=193)
(1)画出格点三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
(2)求三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54631a79bf50d4e0c462620361155315.png)
(3)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24dc97d6060d7bdcd077a4803545ec77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797e67927616b141ed7c6b83f8b6f4fb.png)
您最近一年使用:0次
5 . 如图,在正方形
中,点E是
边上的一点(与A,B两点不重合),将
绕着点C旋转,使
与
重合,这时点E落在点F处,联结
.
(1)按照题目要求画出图形;
(2)若正方形边长为3,
,求
的面积;
(3)若正方形边长为m,
,比较
与
的面积大小,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfa1a2af7e38d33634c462300df381f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/10/bc5b3466-485a-4d73-9f4a-86f18cae2425.png?resizew=137)
(1)按照题目要求画出图形;
(2)若正方形边长为3,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adc90c2d45477e166b02359525f40aa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c105d6ba18fbb0581fb982175e2eac9.png)
(3)若正方形边长为m,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03ef478da46747024ea189aac2a1adc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c105d6ba18fbb0581fb982175e2eac9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ff39c7aa648afd1080206c8080ff79e.png)
您最近一年使用:0次
2023-09-19更新
|
271次组卷
|
2卷引用:上海市部分学校2020-2021学年七年级上学期期末数学试题
名校
6 . 如图,已知
,点A与点
关于点O成中心对称,试画出对称中心点O和
的对称
(此题无需 尺规作图,无需写作法,要求精确,需要写结论).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ee6e1d480ece7117e1f87ebf4bbeea.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/26/1175585a-3927-42ad-9099-53e092d028e5.png?resizew=159)
您最近一年使用:0次
名校
7 . 如图,在平面直角坐标系中,
的三个顶点坐标为
,
,
,
绕原点逆时针旋转
,得到
,将
右平移6个单位,再向上平移2个单位得到
.
和
.
(2)
经旋转、平移后点
的对应点分别为
、
,请写出点
、
的坐标.
(3)
是
的边
上一点,
经旋转、平移后点
的对应点分别为
,
,请写出点
、
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6646e758862a34d89ee14de8a1ea13b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02b3fdf8aaaf4f6541290a4601e6f03c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f2b2e17012dad782bd12795cd27488.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ff7caec4fdd8fb54a3ffbff9692414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](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/828dc8dc7259c510b6d63abf40f60e90.png)
(2)
![](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/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bec550c01b4f075f22ab67f5e55ed5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
您最近一年使用:0次
2023-01-19更新
|
901次组卷
|
11卷引用:上海市静安区新中初级中学2022-2023学年七年级上学期数学学科期末试卷(1)
上海市静安区新中初级中学2022-2023学年七年级上学期数学学科期末试卷(1)(已下线)15.2直角坐标平面内点的运动(分层练习)-2022-2023学年七年级数学下册同步精品课堂(沪教版)(已下线)专题07平面直角坐标系(11大题型)【好题汇编】-备战2023-2024学年七年级数学下学期期末真题分类汇编(上海专用)2019年春人教版九年级上册数学《第二十三章 旋转》单元测试题【区级联考】山东省济南市长清区2017-2018学年八年级(下)期中数学试题山东省长清区双泉中学2017-2018学年八年级下学期期中考试数学试题安徽省合肥市庐江县2019-2020学年九年级上学期期中数学试题安徽省淮南市田家庵区龙湖中学2020-2021学年九年级上学期12月月考数学试题河南省郑州市第四中学、京广实验学校联考2020-2021学年八年级下学期期中数学试题山东省枣庄市滕州市柴胡店镇柴胡店中学2022-2023学年八年级下学期期中数学试题湖北省襄阳市第四中学义教部2023-2024学年九年级上学期期中数学试题
2022七年级上·上海·专题练习
8 . 如图,已知
是直角三角形,其中
.
![](https://img.xkw.com/dksih/QBM/2022/12/11/3128416446431232/3143671617560576/STEM/ac59a29703b74219b22abe8a43fe1e92.png?resizew=195)
(1)画出
绕点A顺时针方向旋转90°后的
;
(2)线段
在旋转过程中所扫过部分的周长是 (保留π);
(3)求线段
在旋转过程中所扫过部分的面积(结果保留π).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5d300740674c0ff13fff9f0d00cf03e.png)
![](https://img.xkw.com/dksih/QBM/2022/12/11/3128416446431232/3143671617560576/STEM/ac59a29703b74219b22abe8a43fe1e92.png?resizew=195)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1dc5667bbf205d6c6c6d189ebda123e.png)
(2)线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(3)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
您最近一年使用:0次
9 . 如图,已知正方形
,点M是线段
延长线上一点,连接
.
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/a784ec3c-03de-46b1-a9fe-03f3fca43f4d.png?resizew=144)
(1)将线段
沿着射线
方向平移,使得点A与点D 重合. 用代数式表示线段
扫过的平面部分的面积.
(2)将三角形
绕着点A旋转,使得
与
重合,点M落在点N, 连接
.用代数式表示三角形
的面积.
(3)将三角形
顺时针旋转,使旋转后的三角形有一边与正方形的一边完全重合(第(2)小题的情况除外).请在下图中画出符合条件的3种情况,并写出相应的旋转中心和旋转角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d42e97eee705d164e6ac6de9ecd6d1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b7251cc685c8967e01c1b75cdd274a0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/a784ec3c-03de-46b1-a9fe-03f3fca43f4d.png?resizew=144)
(1)将线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
(2)将三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3653ada76ba0c8afe9d57c8e7832c6ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1885efcff0b903e314057dd153578600.png)
(3)将三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3653ada76ba0c8afe9d57c8e7832c6ed.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/e3209834-0a9b-4afa-a62c-ea7a2f9ef2a1.png?resizew=523)
您最近一年使用:0次
10 . 在平面直角坐标系中,△ABC的位置如图所示,(每个小方格都是边长为1个单位长度的正方形).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/7/14c46638-8e64-4e16-a9f0-f08e2eac6704.png?resizew=250)
(1)画出△ABC关于y轴对称的△A1B1C1;
(2)将△ABC绕着点A顺时针旋转180°,画出旋转后得到的△A2B2C2,并直接写出点B2,C2的坐标.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/7/14c46638-8e64-4e16-a9f0-f08e2eac6704.png?resizew=250)
(1)画出△ABC关于y轴对称的△A1B1C1;
(2)将△ABC绕着点A顺时针旋转180°,画出旋转后得到的△A2B2C2,并直接写出点B2,C2的坐标.
您最近一年使用:0次
2022-10-04更新
|
151次组卷
|
6卷引用:上海市虹口区继光学校2018-2019学年七年级下学期开学考试数学试题