如图,在平面直角坐标系中,点
、
、
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/441823d5-d31b-4a68-a2d5-0ffd31153237.png?resizew=227)
(1)①以点
为位似中心,在网格区域内画出
,使得
与
位似,且点
与
点对应,位似比为
.
②点
坐标为______.
③
的面积为______个平方单位.
(2)
的外接圆圆心
的坐标为______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7716690d1a6a53a3841e547b1cf05bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c7b4d4f1f3bddf5c3cf0fe83e46216.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3a83d984748f84098ccfaea864ea733.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/441823d5-d31b-4a68-a2d5-0ffd31153237.png?resizew=227)
(1)①以点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/bbe103f073845122c66f22dcb14b711f.png)
②点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
更新时间:2022-11-18 21:29:36
|
相似题推荐
解答题-作图题
|
适中
(0.65)
【推荐1】如图,
的三个顶点的坐标分别是
,
,
,将
经过平移变换得到
.已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3de5e036e156989edafd3cad25dad35.png)
![](https://img.xkw.com/dksih/QBM/2019/7/15/2247241004236800/2247343506186240/STEM/5efb30c37f9b4ec5872efe35c01afdba.png?resizew=306)
(1)在图中画出
;
(2)已知
为
内的任意一点,经过上述平移变换后与
中的点
对应,则点
的坐标为___________;
(3)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/660f7b1d93e9f81edbc661284acdb944.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6868a51ea0a78f2605d3d1cbe701351b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6810da77bafee796a54b2e31f7d729e.png)
![](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/c3de5e036e156989edafd3cad25dad35.png)
![](https://img.xkw.com/dksih/QBM/2019/7/15/2247241004236800/2247343506186240/STEM/5efb30c37f9b4ec5872efe35c01afdba.png?resizew=306)
(1)在图中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2d6bb01f1044358cc5fee441bc62489.png)
![](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/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
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解答题-作图题
|
适中
(0.65)
【推荐2】如图,在平面直角坐标系中,三角形
的点
、
、
的坐标分别为
,
,
.
(1)求三角形
的面积;
(2)将三角形
向右平移
个单位长度,然后向下平移
个单位长度,请画出平移后的图形三角形
,并写出点
、
、
的坐标.(其中点
、
、
的对应点分别为
、
、
)
![](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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1294434b22cb5133043a2270ae1c43f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3355d436341d161584eca56624f7ee8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac09e4d97f0b741da92eea4867278af.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/2/bb50a93e-e3c9-48bc-b587-8350c5b1925e.png?resizew=206)
(1)求三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)将三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.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)
![](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/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
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解答题-问答题
|
适中
(0.65)
【推荐1】如图,在平面直角坐标系
中,直线
与x轴、y轴分别交于点A、B,抛物线
经过点A、B.
(2)设抛物线与x轴的另一个交点为C,点P是
的外接圆的圆心,求点P坐标;
(3)点D坐标是
,点M、N在抛物线上,且四边形
是平行四边形,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/386d3214d98cbe433528e47d17f23dfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e59da5115d0dafea24822245f92c48.png)
(2)设抛物线与x轴的另一个交点为C,点P是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(3)点D坐标是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed1a65d88f9823d49da8f3b96ea9ec6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef6fca3222808b9ef39b1a7a06f59e43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】如图,方格纸上每个小正方形的边长均为1个单位长度,点
,
,
,
在格点(两条网格线的交点叫格点)上,以点
为原点建立直角坐标系.
,
,
三点的圆的圆心
坐标为______;
(2)请通过计算判断点
与
的位置关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/1dde8112e8eb968fd042418dd632759e.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/ac047e91852b91af639feec23a9598b2.png)
(2)请通过计算判断点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41b111c5f42cd9ff1cf92bb20d21b764.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fef27cb7cb1b666c1734c65a7aa9aa4.png)
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解答题-作图题
|
适中
(0.65)
名校
【推荐1】如图,在平面直角坐标系中,
ABC 的三个顶点坐标分别为A(-2,1)、B(-1,4)、C(-3,3)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/25/a4b18d18-4ab9-4ef2-8775-d02c7aaa9c1b.png?resizew=250)
(1)画出
ABC关于y轴对称的
A1B1C1;
(2)以原点O为位似中心,位似比为1:2,在y轴的左侧,画出将
ABC放大后的
A2B2C2;直接写出点C2的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/25/a4b18d18-4ab9-4ef2-8775-d02c7aaa9c1b.png?resizew=250)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
(2)以原点O为位似中心,位似比为1:2,在y轴的左侧,画出将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.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,在平面直角坐标系中,△OAB的顶点坐标分别为O(0,0)、A(2,1)、B(1,﹣2).
(1)以原点O为位似中心,在y轴的右侧画出△OAB的一个位似△OA1B1,使它与△OAB的相似比为2:1 .
(2)分别写出点A、B的对应点A1、B1的坐标:A1(____,_____), B1(____,_____).
(3)△OA1B1与△O2A2B2 是位似图形,点M是位似中心,则点M的坐标为:_________
(1)以原点O为位似中心,在y轴的右侧画出△OAB的一个位似△OA1B1,使它与△OAB的相似比为2:1 .
(2)分别写出点A、B的对应点A1、B1的坐标:A1(____,_____), B1(____,_____).
(3)△OA1B1与△O2A2B2 是位似图形,点M是位似中心,则点M的坐标为:_________
![](https://img.xkw.com/dksih/QBM/2020/11/16/2594334860017664/2596993404272640/STEM/36c9f2df-8797-4b9a-9cd2-e4b4f16bc60b.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】如图,在平面直角坐标系中,网格的每个小方格都是边长为1个单位长度的正方形,点A,B,C的坐标分别为A(1,2),B(3,1),C(2,3),先以原点O为位似中心在第三象限内画一个△A1B1C1.使它与ABC位似,且相似比为
.
(1)请在网格中画出△A1B1C1,
(2)请直接写出A1,B1,C1的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbe103f073845122c66f22dcb14b711f.png)
(1)请在网格中画出△A1B1C1,
(2)请直接写出A1,B1,C1的坐标.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/27c5802c-9b0b-4687-ac1f-93cf5748debb.png?resizew=330)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐2】如图,在平面直角坐标系
中,
的顶点坐标分别为
,
,
(每个方格的边长均为1个单位长度).
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/6/5b7092e6-813a-478f-aebf-2822e8091292.png?resizew=236)
(1)将
先向左平移4个单位,再向上平移1个单位后得到
,请在平面直角坐标系中画出平移后的
.
(2)请以O为位似中心,在y轴右侧画出
的位似图形
,使
与
的相似比为
,则点
的坐标为(__________,__________);点
的坐标为(__________,__________).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b62194097ac66a5093c57fca2f5b4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/115a0c87ac14dbb770c95d74d6e26073.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49a31f8e8dba418bd5d886998ef8d17.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/6/5b7092e6-813a-478f-aebf-2822e8091292.png?resizew=236)
(1)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09a64441d3cf530b0e4d8ed41e6e41a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09a64441d3cf530b0e4d8ed41e6e41a8.png)
(2)请以O为位似中心,在y轴右侧画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ef3e5e30a5d97b80edfa260b43c3e02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ef3e5e30a5d97b80edfa260b43c3e02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05de3fe59383d4d13805123822b440d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
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