Question 1167047
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If x is the length of one side of the square base,

then the base area is  {{{x^2}}}  square centimeters and the height is  {{{800/x^2}}} centimeters.


Then the area of the lateral surface is  {{{(4x)*(800/x^2)}}} = {{{3200/x}}} square centimeters.


Now the total cost of the material is  {{{6*(3200/x)}}} + {{{10*x^2}}} = {{{19200/x + 10x^2}}}  cents.      <U>ANSWER</U>
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