如图,在平面直角坐标系中,
的顶点坐标分别为
,
,
,网格中每个小正方形的边长都是1个单位长度.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/11/7d2262c6-7e89-4df9-b5a4-2ebe20235fc7.png?resizew=232)
(1)画出
关于
轴对称的
;
(2)在
轴上找一点
,使
的周长最短(不写做法,只保留作痕迹).
(3)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12652efb124f262e3cbefaed4962bb58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ec5221f29d69b859875d2d56a885b12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13588c990a32c052aeef1222031db6e8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/11/7d2262c6-7e89-4df9-b5a4-2ebe20235fc7.png?resizew=232)
(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/b8ee6e1d480ece7117e1f87ebf4bbeea.png)
(2)在
![](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/7a855335176fc36a15017f50a8561348.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
更新时间:2024-01-11 18:36:13
|
相似题推荐
解答题-作图题
|
较易
(0.85)
【推荐1】如图.
(1)画出
关于y轴对称的图形
;
(2)若点
在
内,其关于y轴对称的点
的坐标为______;
(3)在y轴上作出一点M,使
的值最小.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/2/8775486f-413f-4fd4-be59-346ef2f393f3.png?resizew=342)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)若点
![](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/2708fa6298e52f617383efc175b71ddc.png)
(3)在y轴上作出一点M,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e211e1a1b43adc52e401350b26c9a16.png)
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【推荐2】如图,由5个全等的正方形组成的图案,请按下列要求画图:
(1)在图案(1)中添加1个正方形,使它成轴对称图形但不是中心对称图形.
(3)在图案(3)中添加1个正方形,使它既成轴对称图形,又成中心对称图形.
(1)在图案(1)中添加1个正方形,使它成轴对称图形但不是中心对称图形.
(3)在图案(3)中添加1个正方形,使它既成轴对称图形,又成中心对称图形.
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解答题-作图题
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【推荐1】已知△ABC在平面直角坐标系中的位置如图所示,每个小正方形的边长为1,点A、B、C都在格点上,直线MN经过点(1,0)且垂直于
轴,若
和△ABC关于直线MN成轴对称.(1)请在网格中画出
;(2)请直接写出
的坐标;(3)若直线上有一点P,要使△ACP的周长最小,请在图中画出点P的位置(保留画图痕迹).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bcc65bfd96beeb5f6a788d47ccdcf16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bcc65bfd96beeb5f6a788d47ccdcf16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63298ad9757ef5311eb3fd0cc19dea03.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/25/23b7dc1f-05d1-444d-b0be-3883b879491d.png?resizew=231)
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解答题-问答题
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【推荐2】已知:等边
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/8d85973b-961c-47e4-ad6d-8292df8fb71c.png?resizew=158)
(1)建立适当的平面直角坐标系,求出
各个顶点的坐标:
(2)若在这个坐标系中作
关于
轴的对称图形
,点
为AB上的一点,则点M在
上的对应点
的坐标为_________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/8d85973b-961c-47e4-ad6d-8292df8fb71c.png?resizew=158)
(1)建立适当的平面直角坐标系,求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若在这个坐标系中作
![](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/23e0db273061d0331e4e5da9ff1e955e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ee6e1d480ece7117e1f87ebf4bbeea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da895d8bd043625a0839128252130d9.png)
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解答题-作图题
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【推荐1】在边长为
的小正方形组成的正方形网格中建立如图所示的平面直角坐标系,已知格点三角形
(三角形的三个顶点都在小正方形上)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/a11d450d-a1ce-4758-aa40-8a664df0465d.png?resizew=270)
(1)画出
关于直线
:
的对称三角形
;并写出
,
,
的坐标;
(2)在直线
上找一点
,使
最小,满足条件的
点为______.提示:直线
是过点
且垂直于
轴的直线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/a11d450d-a1ce-4758-aa40-8a664df0465d.png?resizew=270)
(1)画出
![](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/99c6875d552e9fff3c7d655f3a59b166.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)
(2)在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87719c94aace6c1d828d71d8f362c153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2a5e336b6bcba6354fd366c892dd06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
解答题-作图题
|
较易
(0.85)
【推荐2】如图,在平面直角坐标系中,点
为坐标原点,已知
三个顶点的坐标分别为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/1/2ef12c89-d755-4254-8d80-c924a9cf3f58.png?resizew=249)
(1)先画出
关于
轴对称的
,点
,
,
关于
轴的对称点分别是
,则点
的坐标为
,点
的坐标为_______;
(2)在
轴上找到一点
,使
与
之和最短
不写作法,保留痕迹
,则
点的坐标为______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d708c65db65ae8c133a484bf452ea2c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/1/2ef12c89-d755-4254-8d80-c924a9cf3f58.png?resizew=249)
(1)先画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.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/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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b91bac9868f1abc4000af737872e28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17187d94dd45233699f212031db7449a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
(2)在
![](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/30513ea48bc1ef3ae78adac83d894f14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4d260c4df7b0dc180af6980d21f3371.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
解答题-问答题
|
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(0.85)
【推荐1】在平面直角坐标系中,三角形ABC经过平移得到三角形
.位置如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/3/c8fd1ccb-fb08-44b6-baa2-466b21fc25d4.png?resizew=290)
(1)分别写出点A,
的坐标:A______,
______;
(2)三角形
的面积为______.
(3)若点M(m,4-n)是三角形ABC内部一点,则平移后对应点
的坐标为(2m-8,n-4),求m和n的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1264a2e3609e1c274acb89b5ea5019.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/3/c8fd1ccb-fb08-44b6-baa2-466b21fc25d4.png?resizew=290)
(1)分别写出点A,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
(2)三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1264a2e3609e1c274acb89b5ea5019.png)
(3)若点M(m,4-n)是三角形ABC内部一点,则平移后对应点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da895d8bd043625a0839128252130d9.png)
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名校
【推荐2】如图,在边长为
个单位长度的小正方形网格中建立平面直角坐标系.已知三角形
的顶点
的坐标为
,顶点
的坐标为
,点
的坐标为
.
向右平移
个单位长度,再向下平移
个单位长度得到三角形
,请你画出三角形
;
(2)请直接写出点
的坐标;
(3)求三角形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc5ef36a359b18282afc7ae46bd1ec41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/238e6513f89285e3aa2bff0010a2b143.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ddd46c180401ad4e86b9ef4d5883721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1264a2e3609e1c274acb89b5ea5019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1264a2e3609e1c274acb89b5ea5019.png)
(2)请直接写出点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28a3de77f00a227b6fe20df7c3461424.png)
(3)求三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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