The formula for the surface area \( A \) of a sphere is given by:
\[ A = 4\pi r^2 \]
where \( r \) is the radius of the sphere.
Given that the radius \( r = 3.6 \) ft and using \( \pi \approx 3.14 \), we can calculate the surface area as follows:
\[ A = 4 \times 3.14 \times (3.6)^2 \]
First, calculate \( (3.6)^2 \):
\[ (3.6)^2 = 12.96 \]
Now substitute \( 12.96 \) back into the formula:
\[ A = 4 \times 3.14 \times 12.96 \]
Now calculate \( 4 \times 3.14 \):
\[ 4 \times 3.14 = 12.56 \]
Now, multiply this result by \( 12.96 \):
\[ A = 12.56 \times 12.96 \approx 162.5216 \]
Rounding \( 162.5216 \) to the nearest hundredth gives us:
\[ A \approx 162.52 \text{ ft}^2 \]
Thus, the surface area of the sphere is approximately 162.52 ft².