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Answer:
r = 5 inches
Step-by-step explanation:
Area of circle,
It is required to find the radius of the circle. The area of a circle is given by the formula :
r is radius of the circle
So, the radius of the circle is 5 inches.
Surface area = =
x 3.14 x 3 x 3 x 3 = 3.14 x 4 x 3 x 3 = 113.04 yd^2 = approx. 113.1 yd^2