题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152850-40941.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152850-60227.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152850-14399.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152850-15449.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152850-40941.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152850-60227.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152850-14399.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152850-15449.png)
设
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152851-96956.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152850-60227.png)
可得:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152851-79232.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152851-25221.png)
设A点关于
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152850-15449.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152852-68676.png)
则有
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152852-69941.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152852-71854.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152846-55352.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152847-55212.png)
A.平行 | B.垂直 | C.斜交 | D.与 ![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152842-73136.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152842-94907.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152842-43113.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152843-68368.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152843-44362.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152843-66123.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152843-54392.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152828-64028.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152828-23349.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152829-91159.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152829-69945.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152829-62492.png)
内作等边△
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152829-54196.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152830-54411.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152830-41687.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152829-54196.png)
求
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022152830-61955.png)
A.105个 | B.35个 | C.30个 | D.15个 |
A.相离 | B.相切 |
C.相交但不过圆心 | D.相交过圆心 |
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