Given the following: mAB=mBC=mCD
In circle F, what is the measure of < AFB
Question options:
30°
45°
15°
7.5°
arc(CD) = 2 x angle(E)
arc(CD) = 2 x 15
arc(CD) = 30
arc(AB) = 30
central angle(F) = arc(AB) = 30
+65 
