如图,平面直角坐标系中,每个小正方形边长都是
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/7476d3db-7f56-4812-9d68-998940cf6e56.png?resizew=219)
(1)按要求作图:
①
关于
轴对称的图形
;
②将
向右平移
个单位得到![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
(2)回答下列问题:
①
中顶点
坐标为 ______ .
②若
为
边上一点,则按照(1)中①、②作图,点
对应的点
的坐标为 ______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb5b4e3d2f04e30aff65ecc2fd4e5f8a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/7476d3db-7f56-4812-9d68-998940cf6e56.png?resizew=219)
(1)按要求作图:
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ffb694021b52653de5141ae27ba6d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
②将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
(2)回答下列问题:
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827539d066d1b78e7ef8bc1569864971.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/9b9cb8e6ff801523b0304576cd69fd2d.png)
16-17八年级上·江苏扬州·期末 查看更多[4]
江苏省扬州市江都区郭村第一中学2016-2017学年八年级上学期期末考试数学试题(已下线)江苏省泰州市姜堰区实验初级中学2022-2023学年八年级上学期数学周练11.22江苏省扬州市广陵区三校联谊2023-2024学年八年级上学期12月月考数学试题江苏省盐城市大丰区2023-2024学年八年级上学期12月月考数学试题
更新时间:2017-11-30 19:39:32
|
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解答题-作图题
|
较易
(0.85)
【推荐1】如图,三角形
在平面直角坐标系中,三角形
是三角形
经过平移得到的,三角形
中任意一点
平移后的对应点为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/30/6fe9328a-9ae6-4744-bc48-ce4c568c1db4.png?resizew=267)
(1)请画出三角形
;
(2)请分别写出点
、
、
的对应点
、
、
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1264a2e3609e1c274acb89b5ea5019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab10bab744d5a134bf16e3b4db8bb313.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/30/6fe9328a-9ae6-4744-bc48-ce4c568c1db4.png?resizew=267)
(1)请画出三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1264a2e3609e1c274acb89b5ea5019.png)
(2)请分别写出点
![](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)
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解答题-作图题
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较易
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【推荐2】如图,将三角形ABC先向右平移4个单位长度,再向上平移1个单位长度后得到三角形
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/22/740dc340-8de0-40fe-b8d8-ca63d34b1c50.png?resizew=237)
(1)画出平移后的三角形
;
(2)写出点
,
,
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/22/740dc340-8de0-40fe-b8d8-ca63d34b1c50.png?resizew=237)
(1)画出平移后的三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
(2)写出点
![](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)
您最近一年使用:0次
解答题-证明题
|
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【推荐1】(1)如图,直线
、
分别被直线
、
所截,已知,
,
平分
,
平分
.将下列证明
的过程及理由填写完整.
证明:因为
,
所以
,(________________)
所以
,(________________)
因为
平分
,
平分
,
所以________
,________
,
所以
,所以
(________________)
(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
.
①直接写出点
,
,
的坐标.
②在图中画出
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e53497af8899cb299d762f1a4f46a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6344778ed1e75c1a99e2268468081867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d890499dca9a8ef30addafe41d6e771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/24/71eadf18-1a42-45b1-9989-cb7c9d8e6441.png?resizew=170)
证明:因为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e53497af8899cb299d762f1a4f46a55.png)
所以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9337bd4fc5d4cedd7209c18d5129a3b0.png)
所以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f57e6afcde6eb50b72bb5c188e77eaa3.png)
因为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6344778ed1e75c1a99e2268468081867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d890499dca9a8ef30addafe41d6e771.png)
所以________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9957cf92689aa4c88a2f9a903a5c334a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9caeb80b03a09d53ebd5dcb8612704d.png)
所以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0bd8869f34219e7fbe5a9b8842667c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
(2)如图,平面直角坐标系中,已知点
![](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/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/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51e495827270e9d939b8dca960353129.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/24/e928413b-4a58-4826-a9ef-1b00eeab806f.png?resizew=365)
①直接写出点
![](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/4310db23fc79936c7182361e652bab1a.png)
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解答题-作图题
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较易
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【推荐2】如图,△ABC三个顶点的坐标分别为A(0,﹣3)、B(3,﹣2)、C(2,﹣4),在正方形网格中,每个小正方形的边长是1个单位长度.
(1)画出△ABC向上平移4个单位得到的△A1B1C1;
(2)以点C为位似中心,在网格中画出△A2B2C,使△A2B2C与△ABC位似,且△A2B2C与△ABC的位似比为2:1,并直接写出点B2的坐标.
(1)画出△ABC向上平移4个单位得到的△A1B1C1;
(2)以点C为位似中心,在网格中画出△A2B2C,使△A2B2C与△ABC位似,且△A2B2C与△ABC的位似比为2:1,并直接写出点B2的坐标.
![](https://img.xkw.com/dksih/QBM/2020/4/12/2439744673030144/2440091717730304/STEM/f7399e18be834e7188bb9a68a7a5e61e.png?resizew=194)
您最近一年使用:0次
解答题-问答题
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较易
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【推荐1】如图,三角形ABC和三角形DEF在平面直角坐标系中,每个小正方形的边长均为1.
(1)分别写出A,B,C的坐标;
(2)若三角形DEF可以看作是三角形ABC经过若干次的图形变化(轴对称、平移)得到的,写出一种由三角形ABC得到三角形DEF的过程.
(1)分别写出A,B,C的坐标;
(2)若三角形DEF可以看作是三角形ABC经过若干次的图形变化(轴对称、平移)得到的,写出一种由三角形ABC得到三角形DEF的过程.
![](https://img.xkw.com/dksih/QBM/2020/11/2/2584235384651776/2585722561265664/STEM/ee043b99-b9c2-4bd9-9d67-cecf85a08c34.png)
您最近一年使用:0次
解答题-作图题
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【推荐2】如图,已知在平面直角坐标系中,
的三个顶点的位置如图所示.
(1)画出
关于y轴对称的图形
.
(2)画出
关于x轴对称的图形
.
(3)直接写出
,
,
三点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
(3)直接写出
![](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://img.xkw.com/dksih/QBM/2019/8/30/2279987395280896/2280058158530560/STEM/2cb54f6787d84c809ebd7239424db088.png?resizew=153)
您最近一年使用:0次