Determining the Surface Area of a Solid of Revolution - Page 8

  • A solid is formed by attaching a hemisphere to each end of a cylinder. If the total volume is to be 120cm^3, find the radius (in cm) of the cylinder that produces the minimum surface area. Express your answer correct to 2 decimal places. Help!?
  • Calculate the area bounded by the lines #y=2x and y=0# and a line parallel to the #y-#axis through the point #(2,0)#?