如图,在规格为
的边长为1个单位的正方形网格中(每个小正方形的边长为1),
的三个顶点都在格点上,且直线m、n互相垂直.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/10/b4c3dac2-993e-48f9-bfca-70cab821f6ca.png?resizew=152)
(1)画出
关于直线n的对称图形
;
(2)直线m上存在一点P,使
的周长最小;在直线m上作出该点P;(保留画图痕迹)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13a96e9c2e2a15130d1d56a1d0e16b72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/10/b4c3dac2-993e-48f9-bfca-70cab821f6ca.png?resizew=152)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ee6e1d480ece7117e1f87ebf4bbeea.png)
(2)直线m上存在一点P,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af2cc5f8cec8c498aa12c99c04e1c97d.png)
更新时间:2023-11-01 13:23:28
|
相似题推荐
解答题-问答题
|
较易
(0.85)
【推荐1】如图,A、B两个村庄在一条河l(河宽忽略不计)的两侧.现要在河上建一座码头C,使它到A、B两个村庄的距离之和最小.
![](https://img.xkw.com/dksih/QBM/2022/1/1/2892048827301888/2942598506962944/STEM/a061d2f3-3b81-4a80-8251-46fb813a101b.png?resizew=286)
(1)请你在图中确定码头C的位置,确定的理由是:_____________;
(2)在(1)的基础,测量出
,
,求线段
的长度;
(3)在(2)的基础上,如果比例尺是1∶100000,求码头到A、B两个村庄的实际距离之和的最小值.
![](https://img.xkw.com/dksih/QBM/2022/1/1/2892048827301888/2942598506962944/STEM/a061d2f3-3b81-4a80-8251-46fb813a101b.png?resizew=286)
(1)请你在图中确定码头C的位置,确定的理由是:_____________;
(2)在(1)的基础,测量出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b59ab6bf6111dda4a3d428454768b77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b85be03f7ece260f3f099d97538e3c24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
(3)在(2)的基础上,如果比例尺是1∶100000,求码头到A、B两个村庄的实际距离之和的最小值.
您最近一年使用:0次
解答题-作图题
|
较易
(0.85)
【推荐2】如图,在所给正方形网格图中完成下列各题:(用直尺画图,保留痕迹)
![](https://img.xkw.com/dksih/QBM/2020/11/23/2599172867153920/2599242052493312/STEM/357448dd97684414bb49db7b6b2dec92.png?resizew=263)
(1)画出格点
(顶点均在格点上)关于直线
对称的
;
(2)在
上画出点
,使
最小,并求最小值.(每小格单位长度1)
![](https://img.xkw.com/dksih/QBM/2020/11/23/2599172867153920/2599242052493312/STEM/357448dd97684414bb49db7b6b2dec92.png?resizew=263)
(1)画出格点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2339b7b98c47b4a339030dc2dbd5c5c3.png)
您最近一年使用:0次
解答题-作图题
|
较易
(0.85)
【推荐1】如图,在正方形网格中,有格点三角形
和直线
.
![](https://img.xkw.com/dksih/QBM/2021/7/6/2758453444534272/2768490659512320/STEM/049cd642-5351-48d7-96d4-841d18b0327b.png)
(1)画出三角形
关于直线
对称的三角形
;
(2)画出将三角形
绕点A按逆时针方向旋转90°得到的三角形
;
(3)画出把三角形
向右平移一个网格,然后再向上平移四个网格所得三角形
.(都不要求写作法)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://img.xkw.com/dksih/QBM/2021/7/6/2758453444534272/2768490659512320/STEM/049cd642-5351-48d7-96d4-841d18b0327b.png)
(1)画出三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
(2)画出将三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8b6413768cc0e9f68368422777f275c.png)
(3)画出把三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac424e155e57b7c0fb1c6947615107c3.png)
您最近一年使用:0次
解答题-作图题
|
较易
(0.85)
【推荐2】在平面直角坐标系中,
的顶点位置如图所示.
![](https://img.xkw.com/dksih/QBM/2022/4/2/2949689413992448/2952935590027264/STEM/42d592b7-3f85-47d6-af1f-d93384f43cb3.png?resizew=291)
(1)作出
关于x轴对称的图形
,若
内部一点P的坐标为
,则点P的对应点
的坐标是_____;
(2)将
绕原点逆时针旋转
得到
,画出
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/2022/4/2/2949689413992448/2952935590027264/STEM/42d592b7-3f85-47d6-af1f-d93384f43cb3.png?resizew=291)
(1)作出
![](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/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
(2)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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)
您最近一年使用:0次