7 hills of Rome
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formula is pi * r squared*h where r = radius and h = height pi is approx 22/7 so 22/7*7*7*15=22*7*15= 2310
Surface area = 2*pi*r*(r + h) = 1634 square units.
If h = 7 then h squared = 49
stuck between a rock and a hard place
H. V. R. Iyengar died in 1978.