Answer: ≈660.52 ft²
Step-by-step explanation: Okay, to solve using this formula(s):
A=

D = 2 r
Now, we need to solve using the formula for A:
A = 1/4
= 1/4 *
*
That should equal ≈660.51986ft² after simplified expressions. Round that, and you should get ≈660.52 ft². I hope this helped!