SOLUTION: A circular coffee table has a diameter of 4.8 feet. What will it cost to have the top refinished if it costs $5.50 per square fot for the refinishing? Please help!

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Question 111650: A circular coffee table has a diameter of 4.8 feet. What will it cost to have the top refinished if it costs $5.50 per square fot for the refinishing?
Please help!
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
First find the area of the circular table top:
A+=+%28pi%29r%5E2 Substitute r+=+4.8%2F2=2.4
A+=+%28pi%29%282.4%29%5E2
A+=+3.14%285.76%29
A+=+18.1sq. ft.
Now multiply this by the cost per square foot of the refinishing ($5.50)
C+=+18.1%285.50%29
C+=+99.55
The cost is $99.55 to refinish the table.