Answer
The ratio of the map's area to the park's area is $10^{-8}$
Work Step by Step
We can find the ratio of the area on the map to the area of the actual park.
$\frac{map~area}{park~area} = \frac{(1/10000)(1/10000)}{1} = \frac{(10^{-4})(10^{-4})}{1} = 10^{-8}$
The ratio of the map's area to the park's area is $10^{-8}$.
