如图,在
网格的平面直角坐标系中,每个小方格的边长看做单位1,每个小方格的顶点叫做格点,
的顶点都在格点上.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/18/2b0cdb96-0daf-4708-8b0c-41add0dc0a30.png?resizew=199)
(1)请在网格中画出
的一个位似图形
,使两个图形以点C为位似中心,且所画图形与
的位似比为
;
(2)将
绕着点
顺时针旋转
得
,画出图形,并分别写出
三个顶点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23f3b42cd6069f0e461035e76459ee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/18/2b0cdb96-0daf-4708-8b0c-41add0dc0a30.png?resizew=199)
(1)请在网格中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2f73e4d0557ca664d1edd70b7275667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbe103f073845122c66f22dcb14b711f.png)
(2)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2f73e4d0557ca664d1edd70b7275667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1423eeb205b7f919f0680254527af867.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)
更新时间:2023-09-15 14:33:33
|
相似题推荐
解答题-作图题
|
适中
(0.65)
【推荐1】在平面直角坐标系中,
的顶点位置如图所示.(每个小方格是边长为1的正方形)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/11/4be65a0f-a6de-4948-9a92-8cafa96290fa.png?resizew=264)
(1)将
作平移变换使得点
变换成
得到
;
(2)以点O为位似中心,在网格中画出与
位似的图形
,且使得
与
的相似比为
;
(3)将
绕着点C顺时针旋转
,画出旋转后得到的
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/11/4be65a0f-a6de-4948-9a92-8cafa96290fa.png?resizew=264)
(1)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a79a33a83a7ba57a34b5093d1d1d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc8b225c9eabfca200d08ee34adeacb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)以点O为位似中心,在网格中画出与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbe103f073845122c66f22dcb14b711f.png)
(3)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/83238be7d9f1686b584c30692f419228.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
中,
,
,
.
绕点
按逆时针方向旋转
所得到的
;
(2)连接
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9cf39c4552ecb2b659f052dc5c0f5eb.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6024fd4532f5f981deac4582c799a6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6024fd4532f5f981deac4582c799a6ef.png)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
名校
【推荐1】图①、那②,图③积是
的间格,每个小正方形的顶点称为格点,
顶点A、B、C均在格点上,在图①,图②,图③给定网格中按要求作图,并保留作图痕迹.
![](https://img.xkw.com/dksih/QBM/2023/4/18/3219434931249152/3219881403113472/STEM/002e4b6f4e614fddbebf81660d1e7d63.png?resizew=457)
(1)网格中
的度数是 ___________
;
(2)在图①中画出
中
边上的中线
;
(3)在图②中确定一点E,使得点E在
边上,且满足
;
(4)在图③中画出
,使得
与
是位似图形,且点
为位似中心,点
、
分别在
、
边上,位似比为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd4be97adde17423d59d86d18318c2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/2023/4/18/3219434931249152/3219881403113472/STEM/002e4b6f4e614fddbebf81660d1e7d63.png?resizew=457)
(1)网格中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
(2)在图①中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
(3)在图②中确定一点E,使得点E在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d320f180419175d75eebc618cc458b39.png)
(4)在图③中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38d0469336f71edd52dc9148c67db052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38d0469336f71edd52dc9148c67db052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eb30368afe1ddd6ab11e5d0137125c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.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,在边长均为1的小正方形网格中,以点O为位似中心,将△ABC放大为原来的2倍,得到
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/d9c5f991-7841-476a-bfce-cc4f613f1e23.png?resizew=303)
(1)请在网格中画出
;
(2)直接写出
的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a9281d2ae9514c3e656192242e13b5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/d9c5f991-7841-476a-bfce-cc4f613f1e23.png?resizew=303)
(1)请在网格中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a9281d2ae9514c3e656192242e13b5.png)
(2)直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae90cfd33ee74ed4008b5af995dfd7ed.png)
您最近一年使用:0次