We have the following:
to calculate this distance we must calculate the perimeter of the circumference as follows
[tex]c=2\cdot\pi\cdot r[/tex]where r is the radius,and the radius is half the diameter, therefore
[tex]r=\frac{80}{2}=40[/tex]replacing:
[tex]\begin{gathered} c=2\cdot3.11\cdot40 \\ c=248.8\cong249 \end{gathered}[/tex]Therefore, the answer is 249 meters
