Question

Find the arc length.
r=12, 0=2pi/3

Answer 1

25 units.

Explanation:

r = 12 o = 2pi/3 (120°)

arc length = o/360° × 2pir

= 120°/360° × 2(22/7)(12)

= 1/3 × 2(22/7)(12)

= 2 × 22/7 × 4

= 25 units to the nearest whole number.