如图,在平面直角坐标系中,
的三个顶点坐标分别为
,
,
,以点O为旋转中心,将
逆时针旋转90°,得到
.
(1)画出
;
(2)直接写出点
和点
的坐标;
(3)求线段
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8748dc55e2f45bc37fc4d84d7310f79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b62194097ac66a5093c57fca2f5b4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0baca988e757625c577e02752422a72d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b7dc2fe5d920e74d0941b8c1db9ec04.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/14/96ba697e-bb5e-414e-b3ab-0ef8867b7f77.png?resizew=167)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b7dc2fe5d920e74d0941b8c1db9ec04.png)
(2)直接写出点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
(3)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0fc6cf34323f80b94fe2a9d0867d62e.png)
更新时间:2023-09-27 19:43:15
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相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】(1)
+
-(2012﹣π)0-4sin45°
(2)解方程:x2-10x+9=0.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aea872287a155776bf38d4a4cab7e464.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7db2ee286af2a72034f050c8b8e3563e.png)
(2)解方程:x2-10x+9=0.
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解答题-问答题
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适中
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【推荐1】如图,在平面直角坐标系中,点
的坐标为
,以
为一边在第一象限作等边
.点
为
轴的正半轴上一动点
,连接
.以
为边在第一象限内作等边
.直线
交
轴于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/22/e9cc7d83-a58e-4735-87ab-076495f396cb.png?resizew=133)
(1)当
点坐标为
时,求证:直线
是
边的垂直平分线;
(2)随着点
的移动,
的长是否会发生变化?若没有变化,求
的长;若有变化,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8a0cc6504aa4c3a38006f5394b4c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.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/30ddbd0af2cc086e5cc7f89049609b79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73636989e83905f8800a865c2b608c43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/22/e9cc7d83-a58e-4735-87ab-076495f396cb.png?resizew=133)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ed24bfcc37b79fe9ca61ed8fdf26ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)随着点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
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名校
【推荐2】已知:如图,平面直角坐标系中有一个等腰梯形ABCD,且
,
,点A在y轴正半轴上,点B、C在x轴上(点B在点C的左侧),点D在第一象限,
,
,梯形的高为2.双曲线
经过点D,直线
经过A、B两点.
(2)求双曲线
和直线
的解析式;
(3)点M在双曲线上,点N在y轴上,以A、B、M、N为顶点的四边形是平行四边形,求出点N的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dceb5cc71fc50f20649f6b9535fd914.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c220eadc312101e2fb89dfe920f7b30d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59efa8fd3ef37ad668263448608fb6b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05621b18b7ffc991d9f30380e2e08fea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
(2)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05621b18b7ffc991d9f30380e2e08fea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
(3)点M在双曲线上,点N在y轴上,以A、B、M、N为顶点的四边形是平行四边形,求出点N的坐标.
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解答题-计算题
|
适中
(0.65)
【推荐1】(1)化简:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b25e7bca9039618a3f03c57d66854219.png)
(2)在
中,
,
为斜边
上的高,
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b25e7bca9039618a3f03c57d66854219.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c545764505bb00578a870c5e39493a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2fae188b381c5ba01b3d9d742c687dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/21/c8e77ff4-5c41-4770-a60a-6b463c7c72c2.png?resizew=143)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
名校
【推荐2】如图,在平面直角坐标系中,菱形
的对角线
在
轴上,已知点
,
,点
在
上,坐标为
,
,在
上求作一点
,使得
最小
(1)求点
的坐标;
(2)求
最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/132de9682ce9a412b7b517aa209726ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d62e8aadaadebf1454fde21a390ebdea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44f27b539bbce9a7493629cd76c4590a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3697e8fe366ffbdf19025650ed2e4482.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae7a3e520a16d4fdd73c4e6a4ce7be0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/251c06e9e0041d2a515407e92f005670.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3404862285447f9a651b6edb4e4f169.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d62e8aadaadebf1454fde21a390ebdea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6344eb9267d5c4cf36664d4cb5ef23d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/20/a89cf080-4587-4655-9ecb-0014d4d9d105.png?resizew=300)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6344eb9267d5c4cf36664d4cb5ef23d.png)
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解答题-作图题
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适中
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【推荐1】如图,将四边形ABCD绕原点O旋转180°得四边形A′B′C′D′.
![](https://img.xkw.com/dksih/QBM/2019/12/14/2355146147020800/2355891483623424/STEM/f53cbcf5b7ef49149829fd0bf6e31b82.png?resizew=235)
(1)画出旋转后的四边形A′B′C′D′;
(2)写出A′、B′、C′、D′的坐标;
(3)若每个小正方形的边长是1,请直接写出四边形ABCD的面积.
![](https://img.xkw.com/dksih/QBM/2019/12/14/2355146147020800/2355891483623424/STEM/f53cbcf5b7ef49149829fd0bf6e31b82.png?resizew=235)
(1)画出旋转后的四边形A′B′C′D′;
(2)写出A′、B′、C′、D′的坐标;
(3)若每个小正方形的边长是1,请直接写出四边形ABCD的面积.
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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,
的三个顶点分别是
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/27/ff320079-7552-401a-88d0-0e371fe1f02a.png?resizew=198)
(1)将
以点
为旋转中心旋转
,画出旋转后对应的
,点
的坐标为______;
(2)将
绕某一点旋转
得到
,若点
对应点
的坐标为
,直接写出旋转中心的坐标:______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c28da34849b895986967765f5cca338d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d31cd03879d5c69ff11d0923f1ee82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86c388f2604da379a588f8c5b4a6a767.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/27/ff320079-7552-401a-88d0-0e371fe1f02a.png?resizew=198)
(1)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e1dcdc9d50fe147e3924ce30bba519.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2f73e4d0557ca664d1edd70b7275667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
(2)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2f73e4d0557ca664d1edd70b7275667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e1dcdc9d50fe147e3924ce30bba519.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316fcdd27cabf26bc1f9ab33cfdcbdff.png)
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