A circular sheet of radius 10 cm is cut to form a sector of 120°. What is the length of the arc of this sector?
Show answer & explanation
Correct answer: C
Explanation
Radius r = 10 cm, Angle = 120°
Length of the arc = (θ/360) × 2πr
= (120/360) × 2π × 10 = 20.93 cm