Answer
$A=2.5^2\pi=6.25\pi\approx 6.25\times\frac{22}{7}\approx19.643$ square m.
Work Step by Step
The area of the circle can be calculated as:
$A=r^2\pi$ where r is the radius.
Here:
$d=5$ m
$r=2.5$ m
$A=2.5^2\pi=6.25\pi\approx 6.25\times\frac{22}{7}\approx19.643$ square m.