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如图,已知∠DEC=80°,弧CD的度数与弧AB的度数的差为20°,则∠DAC的...
如图,已知∠DEC=80°,弧CD的度数与弧AB的度数的差为20°,则∠DAC的度数为( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101636668997351/SYS201311031016366689973026_ST/images0.png)
A.35°
B.45°
C.25°
D.50°
考点分析:
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