Answer
$54.1\ m^2$
Work Step by Step
To find the area of a circle, we use the formula $A=\pi r^2$
$\pi$ is approximately 3.14.
The radius (r) is half the diameter(d), so the radius given is 4.15 m.
Plug the given radius and approximate value of $\pi$ in the formula and simplify:
$A=\pi r^2=3.14\times4.15^2=3.14\times17.2225=54.1$
