题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062201-53584.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062201-14653.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062201-52357.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062201-32622.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062201-53584.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062201-15797.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062202-96103.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062202-79211.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062202-50160.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062202-19606.gif)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062203-36569.gif)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062203-13747.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062203-85280.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062203-96063.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062204-72693.gif)
∵
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062204-85810.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062202-19606.gif)
⑵∵
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062203-13747.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062204-41630.gif)
∵
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062202-19606.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062202-79211.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062204-35631.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062204-88379.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062205-18983.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062203-36569.gif)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062157-75943.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062157-65488.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062157-47640.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062157-68591.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062154-49622.gif)
A.[0,5] | B.[5,10] | C.[10,15] | D.[15,20] |
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062149-83720.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062150-64225.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062150-60229.gif)
A.![]() | B.![]() | C.![]() ![]() | D.![]() ![]() |
塔高
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062146-17343.gif)
的两个点
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062146-30380.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062146-61539.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062146-62640.gif)
并在点
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062146-30380.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062147-46692.gif)
塔高
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062147-32817.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062147-93055.jpg)
在△ABC中,角A、B、C的对边分别为a、b、c,若
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062140-16203.gif)
(1)判断△ABC的形状
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062140-73156.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062140-72867.gif)
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