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Answer:There are five surfaces . Area of top surface and of bottom surface = (pi*r^2 / 2*pi )*2 = r^2
Curved surface area = (2*pi*r/2*pi)*2h= 2rh
Total surface area = r^2 + r^2 + hr+hr + 2rh
= 2r^2 + 4hr
Volume = area of cross section*height = hr^2 = 1000
h = 1000/r^2
Total surface area = r^2 + r^2 + 4hr
= 2r^2 + 4000/r
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