题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234831-40942.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234832-54947.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234832-80854.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234832-67828.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234832-77003.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234832-67828.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234833-36922.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234833-76840.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234832-80854.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234832-77003.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234832-80854.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234832-77003.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234832-54947.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234833-18336.png)
⑴如图2,⊙
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234832-54947.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234834-37151.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234834-89330.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234834-46825.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234834-56716.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234834-46825.png)
A.∠![]() | B.∠![]() | C.∠![]() | D.∠![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234832-54947.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234835-89089.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234835-89089.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234835-31396.png)
⑶如果一个图形上各点经过反演变换得到的反演点组成另一个图形,那么这两个图形叫做互为反演图形.已知基圆
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234832-54947.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234831-40942.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234836-12068.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234836-73344.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234836-43070.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234836-73344.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234834-37151.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234834-89330.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234834-37151.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234834-89330.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234832-54947.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234834-46825.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234834-56716.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234835-89089.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234836-73344.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234832-54947.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234835-31396.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234836-24038.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234837-53640.png)
答案
(2)过
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234835-89089.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234837-64645.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234837-59514.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234832-54947.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234838-52800.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234838-95138.png)
过
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234838-52800.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234838-41730.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234838-95138.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234837-59514.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234839-91631.png)
点
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234839-91631.png)
(3)连
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234839-59250.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234839-71123.png)
∵
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234840-95108.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234836-73344.png)
∴∠
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234840-79715.png)
∵∠
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234840-12066.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234840-50056.png)
∴∠
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234840-12066.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234841-60570.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234840-50056.png)
∵点
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234834-37151.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234835-89089.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234832-54947.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234841-69895.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234839-91631.png)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234841-27060.png)
∴△
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234841-87492.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234840-12066.png)
∴∠
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234842-46735.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234842-35396.png)
同理:△
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234842-24644.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234842-36066.png)
∴∠
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234843-72221.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234842-36066.png)
由等式性质知:
∠
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234843-71360.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234843-64700.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234840-12066.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234842-35396.png)
∴∠
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234840-79715.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234840-50056.png)
即∠
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234840-50056.png)
解析
核心考点
试题【(12分)如图1,在平面上,给定了半径为的⊙,对于任意点,在射线上取一点,使得·=,这种把点变为点的变换叫做反演变换,点与点叫做互为反演点,⊙称为基圆. ⑴如图】;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/20191102/20191102234827-73250.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
A.![]() | B.![]() | C.1 | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234817-15948.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234817-55745.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234817-26162.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234817-86182.png)
A、
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234817-55745.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234817-90002.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234818-65878.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234818-84023.png)
A.75㎝,115㎝ | B.60㎝,100 | C.85㎝,125㎝ | D.45㎝,85㎝ |
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102234806-24255.png)
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