Circumference of a circle: (2)(pi)(r)
18.84=(2)(pi)(r)
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2pi 2pi
r=3
Area of a circle: A=pi(r^2)
A=pi(3^2)
A=pi(9)
A=28.26ft^2
Notice! You have to convert from feet to yards:
1 foot= 0.333333 yards
28.26ft= 9.42 yards
So your final answer is 9.42yd^2