Homework Help: Math

Posted by A.W. on Wednesday, November 26, 2008 at 5:19pm.

30. Crafts. A circular coffee table has a diameter of 5 ft. What will it cost to have the
top refinished if the company charges $3 per square foot for the refinishing?

Math - drwls, Wednesday, November 26, 2008 at 5:27pm
The top area is pi*(D^2/4)
Multiply that by $3 per sq ft

D^2 means D-squared and equals 5x5
"pi" = 3.1416

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