Actually, S = 2πrh + 2πr^2
How can the height be more than the surface area? You clearly have a typo. I'll say that h = 3r+x, and you can fill in what you meant to say.
Thus we have
S = 2πr(3r+x) + 2πr^2
S = 8πr^2 + 2πxr
The surface area S of a cylinder is given by the formula S = 2 π rh + 2 πr Write the fomula for S in terms of the radius if the height of the cylinder is S more than 3 times its radius. Use the symbol for pi (distribute out and write answer as an expanded polynomial)
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