Question 607321
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Hi,
An oil tank is constructed so that the middle part is a cylinder with length
 25' and radius 5' and two ends that are each hemispheres.
 Surface Area = 2Ends + around the Cyliner = {{{2pi*r^2 + 2pi*rh =2pi*r(r+h) }}}
 Surface Area[1] = 2pi5·30
 Surface Area[2] = 2pi5·55
  55/30 = 1.83 or 183%