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如图,在直角坐标系中,已知点A(-3,0),B(0,4),对△OAB连续作旋转变...
如图,在直角坐标系中,已知点A(-3,0),B(0,4),对△OAB连续作旋转变换,依次得到三角形①,②,③,④…,则三角形⑩的直角顶点的坐标为
.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103100814217729076/SYS201311031008142177290023_ST/images0.png)
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如图,在平面直角坐标系中,点A的坐标为(1,4),将线段OA绕点O顺时针旋转90°得到线段OA′,则点A′的坐标是
.
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将图形
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103100814214772479/SYS201311031008142147724011_ST/images0.png)
按顺时针方向旋转90°后的图形是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103100814214772479/SYS201311031008142147724011_ST/images1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103100814214772479/SYS201311031008142147724011_ST/images2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103100814214772479/SYS201311031008142147724011_ST/images3.png)
D.
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下列运动属于旋转的是( )
A.滚动过程中的篮球的滚动
B.钟表的钟摆的摆动
C.气球升空的运动
D.一个图形沿某直线对折的过程
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下列图案中,可以由一个“基本图案”连续旋转45°得到的是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103100814214772479/SYS201311031008142147724009_ST/images0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103100814214772479/SYS201311031008142147724009_ST/images1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103100814214772479/SYS201311031008142147724009_ST/images2.png)
D.
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将如图所示图案,绕着点O按顺时针方向旋转90°,得到的图案是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103100814214772479/SYS201311031008142147724008_ST/images0.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103100814214772479/SYS201311031008142147724008_ST/images1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103100814214772479/SYS201311031008142147724008_ST/images2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103100814214772479/SYS201311031008142147724008_ST/images3.png)
D.
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