Question

A circle has a radius of 9. An arc in this circle has a central angle of 120°.

What is the length of the arc?
Either enter an exact answer in terms of it or use 3.14 for 1 and enter your answer as a decimal.
120
9

Answer 1

6pi or 18.84

Explanation:

120/360 times 2 pi 9

120/360 = 1/3

2 times 9 = 18

18 times 1/3 equals 6