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Question 199331: I'm having a really hard time figuring this problem out please help
What is the area in feet of circular tablecloth that has a diameter of 42 inches?
Answer by RAY100(1637)   (Show Source):
You can put this solution on YOUR website! Remember that Area = pi * rad^2
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we are given diameter = 42, or radius = 21 ,,,,(42/2)
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Area = pi * r^2 = pi * 21^2 = pi * 441 = 1385.44 inches ^2
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an obscure Area formula is A = pi d^2 /4 = pi 42^2 /4 = 1385.44 also
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