SOLUTION: What is the radius of a tennis ball with a surface area of 28 in.²?

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Question 293271: What is the radius of a tennis ball with a surface area of 28 in.²?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
What is the radius of a tennis ball with a surface area of 28 in.²?
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Area = 4(pi)r^2
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Solve for "r":
4(pi)r^2 = 28
r^2 = 7/(pi)
r = sqrt[7/pi]
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r = 1.4927 in
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Cheers,
Stan H.