Question 1121717
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A closed cylinder has a curved surface area of 72π cm squared and a height of 4cm. Find the total surface area of the cylinder in terms of π
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Top and bottom, as indicated, "closed".


{{{2pi*r*4=72}}}-----------solve for radius, r.



Total Surface Area,  {{{2*pi*r^2+4*2*pi*r=2pi*r^2+8pi*r}}}