题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106150326-40496.png)
答案
解析
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106150321-35276.png)
A.30,2 | B.60,2 | C. 60,![]() | D. 60,![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106150317-98018.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106150312-87967.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106150312-43851.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106150313-92472.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106150313-94612.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106150313-32218.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106150308-23732.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106150308-99379.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106150308-23732.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106150308-23732.png)
(1)画出旋转后的Rt
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106150308-23732.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106150308-23732.png)
(2)判断Rt
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106150308-23732.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106150308-33208.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106150304-76836.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106150304-76836.png)
(1)如图(1),当AB∥CB′时,设A′B′与CB相交于点D.证明:△A′CD是等边三角形;
(2)如图(2),设AC中点为E,A′B′中点为P,AC=
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106150304-33775.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106150304-76836.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106150305-61608.png)
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