SOLUTION: If the volume of a cone is decreased by 20% and the height increased by 10%. How is the radius affected?

Question 1012873: If the volume of a cone is decreased by 20% and the height increased by 10%. How is the radius affected?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
If the volume of a cone is decreased by 20% and the height increased by 10%. How is the radius affected?
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Volume Formula: V = (1/3)pi*r^2*h
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Modified:: 0.9V = (1/3)*pi*r^2*(1.1h)
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Solve for "r"::
r^2 = 2.7/[pi*1.1h]
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r = sqrt[(2.7/1.1)*pi*h]
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Cheers,
Stan H.
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