Hello!
The formula for area of a circle is A= π*radius^2 (radius squared)
We are given the radius, so now we must input this into our formula.
I will use 3.14 for an approximate value of pi, I am not sure what the rules are for your mathematics class.
A= π*radius^2
= 3.14*9²
= 3.14*81
= 254.34 yd²
∴ About 254.3 yd²
I hope this helps, and best of luck!
