Answer
The radius of the "zorb" (sphere) is approximately 1.6 meters.
Work Step by Step
Using the formula $$r = \sqrt \frac{A}{4\pi}$$
We can substitute the 32.17 $m^{2}$ surface area of the sphere for $A$.
$$r = \sqrt \frac{32.17 m^{2}}{4\pi}$$
We then solve to get 1.600002269, which, rounded to the nearest tenth, is 1.6 meters.
