Find the arc length of a central angle of pi/4 in a circle whose radius is 8 inches
a) pi/32 in
b) 2pi in
c) 360 in
d) 60 in

The formula of the arc is:

Arc Length = 2πR.(C°/360°), where R is the radius, C°(in degrees) is the central angle of the arc:

We are given:
R = 8 in
Central angle = π/4 ≈ (180°/4) = 45°
Length of the arc= 2π x 8 x (45°/360°) →16π(1/8) :

Length of the arc = 2π in (answer B)

The answer for this is 9/1253decimal form 0.007