Area of a circle is given by [tex] \pi r^{2} [/tex] where [tex]r[/tex] is the radius
Radius of a circle is half of the diameter
We have the diameter 30 meters, so the radius is 30÷2=15 meters
Area of the circle = [tex] \pi (15)^{2} [/tex]
Note: The option given doesn't show the [tex] \pi [/tex] symbol but it seems like the correct answer is option A
