图1,图2均为
的正方形网格,
的三个顶点均在格点上,
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/20/2275d721-26fe-4a23-8ef7-d81930899109.png?resizew=308)
(1)请在图1中以
为边画一个格点三角形
,使它与
相似(不全等);
(2)请在图2中以
为边画一个格点三角形
,使它与
相似(不全等).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd4be97adde17423d59d86d18318c2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/20/2275d721-26fe-4a23-8ef7-d81930899109.png?resizew=308)
(1)请在图1中以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)请在图2中以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4734735213b599a9915e1ed91a5d8ce4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
更新时间:2020-07-02 21:12:56
|
【知识点】 在网格中画与已知三角形相似的三角形解读
相似题推荐
解答题-作图题
|
适中
(0.65)
【推荐1】如图,方格纸上的每个小方格都是边长为
小正方形,我们把格点连线为边的三角形称为“格点三角形”,图中的
就是一个格点三角形.
![](https://img.xkw.com/dksih/QBM/2020/9/6/2550380105875456/2552239103213568/STEM/189b6de6-88c0-4fb8-83d6-7a6fc03abced.png?resizew=195)
(1)填空:
________,
________;
(2)请先在方格纸中画出一个格点三角形
,使
,并且
.再回答:
与
的周长之比为________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://img.xkw.com/dksih/QBM/2020/9/6/2550380105875456/2552239103213568/STEM/189b6de6-88c0-4fb8-83d6-7a6fc03abced.png?resizew=195)
(1)填空:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/634d6f7a95c2c1484be3324e5a53953c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61225a7fbab111d7aee4cc8398bcab90.png)
(2)请先在方格纸中画出一个格点三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e4dd6baf95be502586df9f93582ddc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e3037e24cb0d357de049a1a92e27c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc98ced71663486c115d3e275f488a20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0436efefa53aad714565ab2ba7ff90fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
您最近一年使用:0次
解答题-计算题
|
适中
(0.65)
【推荐2】如图,将
放在每个小正方形的边长为1的网格中,点
,点
,点
均落在格点上.
(Ⅰ)计算
的长等于 .
(Ⅱ)请在如图所示的网格中,用无刻度的直尺,画出一个
,使
,且满足点
在
边上,点
在
边上,
.(保留作图痕迹不要求证明).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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)
(Ⅰ)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(Ⅱ)请在如图所示的网格中,用无刻度的直尺,画出一个
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f460edcced5597615113c0fdc95b1dfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/162f135e6c74e629075806f523c58e7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b0393ce62b24aa5f9b740d4cc6743b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/25/abcf0b00-04d3-4a3f-b53e-1139c3adc3a0.png?resizew=181)
您最近一年使用:0次