The answer depends on what variable r stands for.
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Surface Area = 2*pi*(r^2) + 2*pi*r*hVolume = pi*(r^2)*hFor a cylinder with a radius of r and a height of h.The ratio then is:[ 2*pi*(r^2) + 2*pi*r*h ] / [ pi*(r^2)*h ] =(2/h) + (2/r) =2*{ (1/h) + (1/r) }
r=radius d=diameter r=d/2 r=2/2 r=1 meter
1) If it is: (r^22)(r^3) = r^(22 + 3) = r^25 (Just add powers) 2) If it is: (r^2)(2)(r^3) = 2[r^(2 + 3)] = 2r^5