Use the formula: arc length = rθ, where r is the radius and θ is the central angle in radians
If the angle is in degrees, use the formula: arc length = (θ/360) × 2πr
Convert degrees to radians if needed: radians = degrees × π/180
Identify the radius of the circle
Identify the measure of the central angle
Substitute the values into the correct formula
Simplify to get the arc length