SOLUTION: I need help with the following word problem: The total surface area of a right circular cylinder is 54π square inches. If the altitude of the cylinder is twice the length of

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Question 756351: I need help with the following word problem:
The total surface area of a right circular cylinder is 54π square inches. If the altitude of the cylinder is twice the length of a radius, find the altitude of the cylinder.

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The total surface area of a right circular cylinder is 54π square inches. If the altitude of the cylinder is twice the length of a radius, find the altitude of the cylinder.
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Equations:
h = 2r
(pi)r^2 = 54(pi)
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r^2 = 54
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r = 3sqrt(6) inches
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h = 2r = 6sqrt(6) inches
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Cheers,
Stan H.
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