Answer
$2radians,114.59^{\circ}$
Work Step by Step
We know that
$\theta=\frac{s}{r}$
We plug in the known values to obtain:
$\theta=\frac{8000}{4000}=2radians$
Now we can convert this angle into degrees as
$\theta=2\times \frac{180^{\circ}}{\pi}=114.59^{\circ}$
