2 times pi times the radius squared plus 2 times pi times the radius times the height equals surface area of a cylinder :]
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archimedes
Surface Area = 2(pi r 2) + (2 pi r)* h
the circumfrance of the base x the height of the cylinder
Archimedes
The formula for surface area of a cylinder is (2pi * r^2) + (2pi * r * h). Substituting your values in, the surface area would be 170pi.