题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020240-62027.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020240-85408.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020240-47145.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020241-69103.png)
答案
解析
试题分析:⊙O1的半径是
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020240-62027.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020240-85408.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020240-47145.png)
点评:本题考查两圆相交的圆心距,掌握两圆相交的圆心距跟两圆半径之间的关系是本题的关键,再次就是会在数轴上表示不等式
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020233-26435.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020233-55552.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020233-36166.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020233-26435.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020233-97700.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020234-15347.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020234-68590.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020234-21143.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020234-84258.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020225-70400.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020225-91663.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020225-95369.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020214-16822.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020215-85183.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020215-50560.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020215-88574.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020215-66072.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020215-85183.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020216-79872.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020216-49221.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020216-71342.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020216-33929.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020215-85183.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020217-16498.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020217-26120.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020217-77746.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020216-33929.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020216-79872.png)
③
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020217-46209.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020218-48942.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020218-31527.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020218-33071.png)
题甲:已知矩形两邻边的长
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020159-87269.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020159-22378.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020200-58333.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020200-53303.png)
(2)当矩形的对角线长为
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020200-14472.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020200-53303.png)
(3)当
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020200-53303.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020200-42058.png)
题乙:如图,
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020201-83703.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020201-69329.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020201-41991.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020201-32312.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020201-69329.png)
点
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020202-60033.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020202-69067.png)
(1)判断直线
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020202-86751.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020201-69329.png)
(2)当
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020202-34445.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020203-73784.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191105/20191105020203-17560.png)
A.内切 | B.相交 | C.外切 | D.外离 |
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