If the height of a cylinder is doubled, by what number must the radius of the base be multiplied so that the resulting cylinder has the same volume as the original cylinder?

If the height of a cylinder is doubled, by what number must the radius

1.	If the height of a cylinder is doubled, by what number must the radius of the base be multiplied so that the resulting cylinder has the same volume as the original cylinder?
A.	4
B.	\[\frac{1}{\sqrt{2}}\]
C.	2
D.	\[\frac{1}{2}\]
Answer» C. 2

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If the height of a cylinder is doubled, by what number must the radius of the base be multiplied so that the resulting cylinder has the same volume as the original cylinder?

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