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(2001•重庆)如图,⊙O1与半径为4的⊙O2内切于点A,⊙O1经过圆心O2,...
(2001•重庆)如图,⊙O
1与半径为4的⊙O
2内切于点A,⊙O
1经过圆心O
2,作⊙O
2的直径BC交⊙O
1于点D,EF为过点A的公切线,若O
2D=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019105453850493259/SYS201310191054538504932013_ST/0.png)
,那么∠BAF=
度.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019105453850493259/SYS201310191054538504932013_ST/images1.png)
考点分析:
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