题目
题型:不详难度:来源:
在
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060132-48151.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060132-43687.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060132-36401.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060132-56732.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060133-53953.gif)
(1)边
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060133-14809.gif)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060132-48151.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060133-85427.gif)
答案
1) 7
2)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060133-59119.gif)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060134-45242.gif)
=
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060134-41794.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060134-14189.gif)
所以
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060134-22133.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060134-84749.gif)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060135-50447.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060133-59119.gif)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060126-54148.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060126-48022.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060126-82898.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060126-76845.png)
A.![]() | B.![]() | C.![]() | D.![]() |
已知△
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060122-18607.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060122-12100.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060122-71200.gif)
(1)求边长
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060122-16894.gif)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060122-36964.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060115-89593.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060116-30599.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060116-17695.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060116-32657.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060115-89593.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() ![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060110-14985.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060110-28537.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060110-27285.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060110-11150.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060111-14292.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060107-92641.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060107-77030.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060107-29377.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060107-24189.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020060107-50922.gif)
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