题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100056-27319.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100057-39866.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100057-71117.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100057-39866.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100057-89638.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100058-90214.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100058-88225.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100058-66017.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100058-38631.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100059-48788.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100059-35458.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100059-92949.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100100-74229.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100100-90083.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100100-62852.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100101-47457.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100101-28625.jpg)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100101-17794.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100101-91267.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100102-48455.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100102-97199.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100102-36101.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100103-56572.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100103-56572.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100103-18277.png)
可以利用
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100103-57346.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100103-19666.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100103-18277.png)
解:由角平分线定理得
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100104-84748.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100104-39134.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100104-95489.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100104-23322.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100103-19666.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100105-20342.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100105-84925.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100050-42647.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100050-97192.png)
A.![]() | B.![]() | C. -5 | D.5 |
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100037-82527.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100038-24097.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100038-46996.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100038-11097.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100038-54632.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100039-81486.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100032-15908.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100032-80097.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100033-64737.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100033-33174.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100033-51362.png)
A.正三角形 | B.直角三角形 | C.等腰三角形 | D.等腰直角三角形 |
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100025-82475.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100025-57500.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100025-69971.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100025-69940.png)
点
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100025-24768.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100026-82860.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100026-60432.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100026-65392.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100026-72888.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103100020-67438.png)
A.梯形 | B.菱形 | C.矩形 | D.正方形 |
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