SOLUTION: A steel reinforcing rod is 15' long and 9/16" thick at its diameter. If a cubic foot of steel weighs 485 pounds, how much does the rod weigh?

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Question 140245: A steel reinforcing rod is 15' long and 9/16" thick at its diameter. If a cubic foot of steel weighs 485 pounds, how much does the rod weigh?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
15*12(pi*9/32^2)=44.7 in^3 or 44.7/12*12*12=.0259ft^3*485=12.56lbs.