题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004535-87933.jpg)
(1)求证:△CEB∽△CBD ;
(2)若CE =
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004535-17327.gif)
答案
∴∠C =∠CBE ∴∠D =∠CBE 又∵∠C =∠C ∴△CEB∽△CBD
(2)解:∵△CEB ∽△CBD ∴
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004535-70951.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004535-73641.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004536-66796.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004536-44310.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004536-66855.gif)
解析
核心考点
试题【如图,已知⊙O的弦CD垂直于直径AB,点E在CD上,且EC =" EB" .(1)求证:△CEB∽△CBD ;(2)若CE = 3,CB="5" ,求DE的长.】;主要考察你对相似图形等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004529-36219.gif)
(1)求证:重叠部分的四边形B/EDF/是菱形
(2)若重叠部分的四边形B/EDF/
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004529-29182.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004529-50655.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004519-61275.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004519-93080.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004519-80630.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004519-11285.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004520-50028.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004520-71988.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004520-84025.png)
(1)按要求填表
![]() | 1 | 2 | 3 |
![]() | | | |
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004520-50028.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004521-81542.png)
(3)若
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004521-63146.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004521-40571.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004521-63146.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004511-41435.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004511-27465.png)
(1)请你按下列要求画图:
① 联结
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004511-77388.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004511-62585.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004511-67219.png)
② 在
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004512-57981.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004512-55183.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004512-36002.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004512-62016.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004512-98274.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004512-94728.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004513-68519.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004511-77388.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004513-35838.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004513-39026.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004513-43880.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004513-96570.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004513-13204.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004508-11507.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103004503-25492.png)
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