Answer
$840\ ft$
Work Step by Step
The height of the mast equals to an arc length subtends to an angle of $\theta=2^\circ11'=(\frac{131}{60})^\circ$. The distance is the radius, we have $32.0=r\theta=(\frac{131}{60})^\circ\times\frac{\pi}{180^\circ}r$ which gives $r\approx840\ ft$
