If the area of circle O is 16π, what is the length of an arc on the circle formed by a central angle measuring 15 degrees?  Pick:
A) π/3 B) 3π/2 C) 2π D) 5π/2 E) 8π
Area = 16π   Radius = 4   Circumference = 2 x 4 x π = 8π   Angle forming the arc = 15 degrees. 15/360 = 1/24.   Therefore length of arc = 1/24 * 8π = π/3 - π/3nswer choice π/3.
<result>A</result>
If the area of circle O is 16π, what is the length of an arc on the circle formed by a central angle measuring 15 degrees?