题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070913-54873.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070913-73337.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070913-69692.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070913-48718.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070914-75473.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070914-53371.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070914-13951.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070913-69692.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070914-22735.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070915-91386.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070915-91386.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070915-98094.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070915-25615.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070915-90051.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070915-40804.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070916-73442.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070916-59070.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070916-82889.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070916-59246.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070917-25094.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070917-55953.png)
答案
解析
由勾股定理得:AB=
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070917-35630.png)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070916-82889.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070916-59246.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070917-25094.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070915-91386.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070915-91386.png)
核心考点
试题【如图,中∠,两直角边长分别是3、4,直线分别交直角边、于,将沿折叠,点落在点处,且点在的外部,、分别与相交于点、,则、、的周长之和是__________。】;主要考察你对相似图形性质等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070905-65472.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070905-39516.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070905-16940.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070906-81822.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070905-39516.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070906-91806.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070906-89655.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070906-77126.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070907-55458.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070907-61651.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070902-98770.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070854-58714.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103070850-11372.png)
A.7 B.6 C.5 D.4
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