total circumference = pi d = 10 pi
fraction of circumference 18.75 / (10 pi)
fraction of 360 degrees 18.75/(10 pi) * 360 = 214.86 degrees
total circumference = pi d = 10 pi
fraction of circumference 18.75 / (10 pi)
fraction of 360 degrees 18.75/(10 pi) * 360 = 214.86 degrees