题目
题型:填空题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821011421-25554.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821011421-76259.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821011421-76259.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821011421-76259.png)
核心考点
举一反三
(1)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821011418-69133.png)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821011418-25894.png)
(3)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821011419-86549.png)
(4)在直角△ABC中,∠C=90
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821011419-82116.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821011419-79468.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821011417-94903.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821011417-53775.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821011415-21400.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821011415-21467.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821011412-37583.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821011405-13626.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821011411-86127.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821011411-66472.png)
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