Question

Arc AB is One-third of the circumference of a circle. What is the radian measure of the central angle?

Answer 1

2π/3 should be your answer

Answer 2

2 pi/3

Explanation:

Since the arc length is 1/3 of the circumference of a circle, the measure of the central angle is 1/3 of the whole circle, or 1/3(2 pi) = 2 pi/3