The circumference of a circle is 2 * Pi * radius - In this case
2 * 3.142 * 23
= 144.53
The length of the arc is 120/360 of the circumference (360 degrees in a circle).
120/360 = 1/3
1/3 * 144.53 = 48.177
(or 48, rounded to nearest whole number).
How do you find the arc of a circle when the radius is 23 and the central angle is 120?