Question 1079222
Find the radius of the pond.
{{{pi*R^2=36pi}}}
{{{R^2=36}}}
{{{R=6}}}{{{ft}}}
So the walkway has an inner radius of 6 ft and an outer radius of 10 ft.
{{{A[w]=pi(10^2-6^2)}}}
Work that out for your final answer in {{{ft^2}}}.