#### Answer

$\frac{8}{3} \pi$ in

#### Work Step by Step

AB is the minor arc of the circle
We need to find out the length of AB
In a circle whose circumference is c, the length l of an arc whose degree measure is m is given by l =$\frac{m}{360}$ * c
Therefore for given circle c = 2$\pi$ r = 2$\pi$ * 8 = 16$\pi$
given m =60$^{\circ}$
Therefore lAB = $\frac{m}{360}$ * c
= $\frac{60}{360}$ * 16$\pi$
=$\frac{8}{3} \pi$ in