在平面直角坐标系中,
为原点,点
,
,
.
的面积为______;
(2)如图②,将点
向右平移7个单位长度,再向上平移4个单位长度,得到对应点
坐标为(______, ______).
①求
的面积;
②点
是一动点,若
的面积等于
的面积,直接写出点
坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32366143230ca122894a4bada7c7b96d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2c77a42750684cb6157c2c7fb9422a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/437f923730cfbd1bc6f62738d607eca7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)如图②,将点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
②点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/627b7b7b7ea0bbf3ddab5495b202fef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52d0151288363337e743d5796b952473.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd1bad8deaf97f200d797c5fda7f89e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
20-21八年级上·浙江宁波·期末 查看更多[30]
浙江省宁波市北仑区2020-2021学年八年级上学期期末数学试题(已下线)易错08 平行直角坐标系中求几何图形的面积问题易错-2020-2021学年七年级数学下册期末突破易错挑战满分(人教版)山东省德州市陵城区2020-2021学年七年级下学期期末数学试题山西省吕梁市交城县2020-2021学年七年级下学期期末数学试题河南省焦作市2020-2021学年七年级下学期期末数学试题陕西省汉中市汉台区2020-2021学年八年级下学期期末数学试题广东省梅州市学艺中学2021-2022学年八年级下学期期中数学试题江苏省南通市海安市海陵中学2021-2022学年七年级下学期期中数学试题(已下线)(培优特训)专项7.1 平面直角坐标系中图形面积的求法-2022-2023学年七年级数学下册《同步考点解读·专题训练》(人教版)(已下线)专题7.2 平面直角坐标系中运用(专项训练)-2022-2023学年七年级数学下册《同步考点解读·专题训练》(人教版)(已下线)专题7.2 平面直角坐标系中运用(知识解读)-2022-2023学年七年级数学下册《同步考点解读·专题训练》(人教版)(已下线)专题3.28 图形的平移与旋转(动点问题)(巩固篇)(专项练习)-2022-2023学年八年级数学下册基础知识专项讲练(北师大版)(已下线)7.2 坐标方法的简单应用-2022-2023学年七年级数学下册《考点·题型·技巧》精讲与精练高分突破系列(人教版)(已下线)【期中测试】满分预测押题卷(A卷·知识通关练)(考试范围:第五章~第七章)-【单元测试】2022-2023学年七年级数学下册分层训练AB卷(人教版)(已下线)第三章《图形的平移与旋转》同步单元基础与培优高分必刷卷-2022-2023学年八年级数学下册《考点·题型·技巧》精讲与精练高分突破系列(北师大版)甘肃省武威第九中学、十中、二十六中、新起点学校2022-2023学年七年级下学期期末数学试题广东省汕头市潮阳市峡山镇峡晖中学2022-2023学年七年级下学期期末数学试题河北省邯郸市永年区第八中学2021-2022学年八年级下学期期中数学试题(已下线)专题3.16 位置与坐标(全章分层练习)(提升练)-2023-2024学年八年级数学上册基础知识专项突破讲与练(北师大版)(已下线)专题3.14 位置与坐标(全章知识梳理与考点分类讲解)-2023-2024学年八年级数学上册基础知识专项突破讲与练(北师大版)(已下线)第02讲 平面直角坐标系运用(知识解读+真题演练+课后巩固)-2023-2024学年八年级数学上册《知识解读·题型专练》(浙教版)浙江省绍兴市新昌县七星中学2023-2024学年八年级上学期期中数学试题(已下线)NYtjzxsxrj7x65.pdf(已下线)专题05 坐标系与几何图形的七类题型-【好题汇编】备战2023-2024学年八年级数学上学期期末真题分类汇编(浙教版)(已下线)专题5.17 平面直角坐标系(全章知识梳理与考点分类讲解)-2023-2024学年八年级数学上册基础知识专项突破讲与练(苏科版)(已下线)专题5.19 平面直角坐标系(全章分层练习)(提升练)-2023-2024学年八年级数学上册基础知识专项突破讲与练(苏科版)(已下线)第七章 平面直角坐标系单元单元测试B卷(已下线)第7章 平面直角坐标系(单元测试·培优卷)-2023-2024学年七年级数学下册基础知识专项突破讲与练(人教版)(已下线)专题05 平行直角坐标系中规律、新定义、面积之三大题型-【好题汇编】备战2023-2024学年七年级数学下学期期中真题分类汇编(人教版)(已下线)专题05 平面直角坐标系期末真题汇编【十一大题型+优选提升题】-备战2023-2024学年七年级数学下学期期末真题分类汇编(人教版)
更新时间:2023-12-09 22:02:42
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解答题-应用题
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【推荐1】(1)某年11月的日历如图1所示,用
的长方形框出3个数,如果任意圈出一横行左右相邻的三个数,设最小的为
,用含
的式子表示这三个数的和为______;如果任意圈出一竖列上下相邻的三个数,设最小的数为
,用含
的式子表示这三个数的和为______.
(2)如图2,用
的正方形框出4个数,是否存在被框出的4个数的和为80,如果存在,求出这四个数中的最小的数,如果不存在,并说明理由;
(3)如图2,用
的正方形框出9个数,在框出的9个数中,记前两行(灰色部分)共有6个数的和为
,则
______;第3行3个数的和为
,则
______.若
,请求出正方形框中位于最中心的数
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/25/757e7fc5-8f85-46fe-aa26-adb52e57e996.png?resizew=281)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/367e18e235c4645558f46aa3672bc31d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)如图2,用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b72fcdc709e77910cd36a26369648b3.png)
(3)如图2,用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/777d8fccf0cf8b55a68488fe48b78744.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7936359df4c926b72b48c6fdae55f12d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5621a6b6ddbd6412ec54095f3ee99667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b76f79be89b8c6227b68eded6b675546.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d46163bfb72830b3f67b9471fc46fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e6acc195214057483abc227a8f30dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/25/757e7fc5-8f85-46fe-aa26-adb52e57e996.png?resizew=281)
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【推荐2】已知
,
两点在数轴上表示的数分别是
和12,现
,
两点分别以1个单位/秒,3个单位秒的速度向左运动,
比
早1秒出发,问
出发后几秒原点恰好在两点正中间?
![](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/81fb134b2b48acc99213fff6ccfee65f.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/2021/3/8/2673461406687232/2677813944991744/STEM/21902382-6cd2-4ce7-972c-3f45834ee82f.png?resizew=355)
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【推荐1】如图1,直线
分别与
轴、
轴交于
、
两点,
平分
交
于点
,点
为线段
上一点,过点
作
交
轴于点
,已知
,
,且
、
满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bda5d96ceb6b2008fcd453fa70989d81.png)
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/11/466176c4-00d1-4f5d-bda3-fa92c6a721f6.png?resizew=436)
(1)求
、
两点的坐标;
(2)若点
为
中点,延长
交
轴于点
,在
的延长线上取点
,使
,连接
;
①
与
轴的位置关系怎样?说明理由;
②求
的长;
(3)如图2,若点
的坐标为
,
是
轴的正半轴上一动点,
是直线
上一点,且
点的坐标为
,是否存在点
使
为等腰直角三角形?若存在,求出点
的坐标;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaa317c983e05adf97f25ba296d367fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c69462beb2cb43b880cfe49f516fd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c92d88a1c64be9120a07753c289c77d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bda5d96ceb6b2008fcd453fa70989d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/771df37a312dac1fb332a31a10340c29.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/11/466176c4-00d1-4f5d-bda3-fa92c6a721f6.png?resizew=436)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08f66f5efdb68ef98abb8d232b54b0c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
(3)如图2,若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1472504b0efd34bb50dae822debac6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d872c210c1160b2a15ce49677d66691d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc4cd7c59e65d066440205914db41f60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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【推荐2】在如图所示平面直角坐标系中,矩形ABCD,BC、AB分别平行于x轴和y轴,点A坐标(1,3),点C坐标(4,1);函数
的图像为G;
(1)点B坐标是 ,点D坐标是 ;
(2)当函数的图像G经过点D时,
①求m的值;
②此时图像G与直线y=a有两个交点时,求a的取值范围;
(3)当函数的图像G与矩形ABCD只有一个交点时,直接写出M的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c45992018c055342b6220a309042e1e.png)
(1)点B坐标是 ,点D坐标是 ;
(2)当函数的图像G经过点D时,
①求m的值;
②此时图像G与直线y=a有两个交点时,求a的取值范围;
(3)当函数的图像G与矩形ABCD只有一个交点时,直接写出M的取值范围.
![](https://img.xkw.com/dksih/QBM/2021/7/16/2765575938138112/2796017937473536/STEM/f2c8a87f38474d97ad66fa5daf4c94e3.png?resizew=272)
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【推荐1】如图,点A,B的坐标分别是为
,
,若将线段
平移至
的位置,
与
的坐标分别是
和
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/29/4396836b-2895-451b-b3d1-2f27023c35a5.png?resizew=200)
(1)m=___,n=
(2)求线段
在平移过程中扫过的图形面积(一组对边平行且相等的四边形是平行四边形).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/138506a762e636aa75a4d54f5b739b89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc51e325e65de188652a802254adf16c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e57c789cfd4b0be7dbf63aa99435656.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c1475903b0acc65cb93f58099993c60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e93b3cfedfbea69db7fc6b4d01979864.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf7fba1029d4cb2b569f55cee4658658.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/29/4396836b-2895-451b-b3d1-2f27023c35a5.png?resizew=200)
(1)m=___,n=
(2)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐2】如图,在正方形网格中,每个小方格的边长为
个单位长度,
的顶点
,
的坐标分别为
,
.
![](https://img.xkw.com/dksih/QBM/2021/7/20/2768539319984128/2802312872878080/STEM/35cc1b4c-7805-4d08-8cab-5b61a0f799c9.png)
(1)请在图中建立平面直角坐标系,并写出点
的坐标.
(2)平移
,使点
移动到点
,画出平移后的
,其中点
与点
对应,点
与点
对应.
(3)求
的面积.
(4)在坐标轴上是否存在点
,使
的面积与
的面积相等,若存在,请直接写出点
的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.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/7799095b2f8f39dfacfe19914bf2d759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9a98c743bf6211bd15150093d7729e5.png)
![](https://img.xkw.com/dksih/QBM/2021/7/20/2768539319984128/2802312872878080/STEM/35cc1b4c-7805-4d08-8cab-5b61a0f799c9.png)
(1)请在图中建立平面直角坐标系,并写出点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)平移
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/625dc0200d8613cb21eea41f70ed65a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0436efefa53aad714565ab2ba7ff90fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
(4)在坐标轴上是否存在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e054d5a02e2c9fee1ebd8aa2a267576c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
名校
【推荐3】如图,在平面直角坐标系中,即△ABC的三个顶点分别是A(﹣3,2),B(﹣1,4),C(0,2).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/9/24ed10da-a5c5-4885-8a0e-4e58cf8ce6bf.png?resizew=279)
(1)将△ABC以点O为旋转中心旋转180°,画出旋转后对应的△A1B1C1.
(2)平移△ABC,若点A的对应点A2的坐标为(﹣5,﹣2);则点B的对应点坐标是_____________
(3)将△ABC以点O为旋转中心顺时针旋转90°,直接写出点A对应点的坐标___________
(4)若将△A1B1C1绕某一点旋转可以得到△A2B2C2,请直接写出旋转中心的坐标为__________.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/9/24ed10da-a5c5-4885-8a0e-4e58cf8ce6bf.png?resizew=279)
(1)将△ABC以点O为旋转中心旋转180°,画出旋转后对应的△A1B1C1.
(2)平移△ABC,若点A的对应点A2的坐标为(﹣5,﹣2);则点B的对应点坐标是_____________
(3)将△ABC以点O为旋转中心顺时针旋转90°,直接写出点A对应点的坐标___________
(4)若将△A1B1C1绕某一点旋转可以得到△A2B2C2,请直接写出旋转中心的坐标为__________.
您最近一年使用:0次