SOLUTION: Which has the greater effect on the surface area of a right circular cylinder - doubling the radius or doubling the height?

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Question 917108: Which has the greater effect on the surface area of a right circular cylinder - doubling the radius or doubling the height?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Depends. Does the SA include the 2 ends of the cylinder?
If it does, then the radius has a greater effect.
If not, then they're equal.