s = arc length; r = radius of the circle; (θ) = measure of the center angle in radians
s = (central angle/360) *2 (pi) * r = (45/(pi)/360) * 2(pi)r = 1/4r = 1/4(7) = 7/4 = 1.75 <=ANSA)
arc = 10.05 - 10 = 0.05 = 5 min
5 = (theta)/180) * (pi)r = theta or
theta = 5/r =5/7 = 0.71 rad <= ANS B)
