在平行四边形、矩形、菱形、正方形、等腰梯形5种图形中,既是轴对称,又是中心对称的图形有 _________ .
题型:广东省月考题难度:来源:
在平行四边形、矩形、菱形、正方形、等腰梯形5种图形中,既是轴对称,又是中心对称的图形有 _________ . |
答案
矩形,菱形,正方形 |
举一反三
如图中既是轴对称图形,又是中心对称图形的是 |
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106191859-90034.png) |
[ ] |
A.(l)(2) B.(1)(2)(3) C.(2)(4) D.(1)(2)(3)(4) |
如图,△ABC在平面直角坐标系中,若将△ABC绕点C顺时针旋转90°后得△A"B"C". (1)请在图中画出△A"B"C",并写出点A"、B"、C"的坐标; (2)画出△ABC关于x轴对称的△A1B1C1. |
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106191854-44068.png) |
下列几何图形中,是轴对称图形但不是中心对称图形的是 |
[ ] |
A.![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106191850-84788.png) B.![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106191850-68552.png) C.![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106191851-86060.png) D.![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106191851-60319.png) |
下列图形中既是轴对称图形又是中心对称图形的是 |
[ ] |
A.![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106191846-50094.png) B.![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106191846-46498.png) C.![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106191846-61207.png) D.![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106191847-27387.png) |
直角△ABC纸片的两直角边长分别为6,8,现将△ABC如图那样折叠,使点A与点B重合,折痕为DE,则△CBE的面积是 |
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106191842-59658.png) |
[ ] |
A.![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106191842-89075.png) B.![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106191842-80736.png) C.![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106191843-90156.png) D.![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106191843-59309.png) |
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