Answer:
81pi or 254.34 inches square
Step-by-step explanation:
18pi = 2pi*r
pi*r = 9pi
r = 9
pi*(9)^2 = 81pi = 254.34 inches square
Answer: 81 pi inches, or around 254.34 inches.
Step-by-step explanation:
Since the formula for circumference of a circle is 2piR (where R would be the radius), we know that the radius of this circle is 9. From that, we simply need to plug it into the formula for area of a circle: piRsquared. 9 squared is 81, and pi is around 3.14.
Hope this helped.
