SOLUTION: if the diameter of my circle is 7'4" whats is the total amount of steel used?

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Question 613697: if the diameter of my circle is 7'4" whats is the total amount of steel used?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi, 

if the diameter of my circle is 7'4" OR 7 1/3 ft OR   22/3,    r = 11/3ft

 Area = pi%2811%2F3%29%5E2 = 42.22 ft^2   using 3.14 for pi

That maybe helpful.