题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152458-85659.png)
A.30º | B. 45º | C.90º | D.135º |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152458-85659.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152447-18152.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152448-96246.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152448-86541.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152448-94719.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152448-29097.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152449-91776.png)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152449-80278.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152449-67425.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152449-38059.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152449-67425.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152443-47389.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152443-44448.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152444-17278.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152444-84614.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152444-86571.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152443-44448.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152444-86571.png)
(1)求AB边所在的直线方程;
(2)求中线AM的长
(3)求AB边的高所在直线方程.
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152436-84866.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152430-37377.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152430-38279.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152430-71344.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152430-36009.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152430-21472.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152431-52342.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152431-17998.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152431-44127.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152431-69455.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152431-31342.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152432-75001.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152432-24532.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152432-48432.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152432-55191.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152432-75109.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152433-47554.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152433-15617.png)
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