题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045251-40339.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045251-33955.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045252-36556.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045252-32306.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045252-87150.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045252-36556.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045252-16558.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045252-32306.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045253-56084.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045244-74517.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045244-65894.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045244-88881.png)
(1)求角
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045244-18671.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045244-74517.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045244-40791.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045239-84288.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045239-20884.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045239-34364.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045239-74343.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045236-74165.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045236-68719.png)
A.四边形 | B.五边形 |
C.六边形 | D.四边形或六边形 |
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045230-98333.png)
A.![]() ![]() | B.![]() | C.![]() | D.![]() |
设
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045223-53508.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045223-16817.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045223-53224.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045224-54892.png)
(Ⅰ)求
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045224-44716.png)
(Ⅱ)求
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020045224-76997.png)
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