relateing surface area to volume?
I have a problem that I can't quite figure out.
If I have a rectangular prism with a length=L width=W and hight=H and L=W, and the volume of this prism is 10,000 then you could write the volume formula as so
X^2(H)=10,000 because L=W and X=L=W X^2=L(W)
and surface area of the prism could be writen as so
2LW+2LH+2HW= surface area
2X^2 +2XH+2XH= surface area, Because X^2=L(W) and X=L=H
2X^2+4X= surface area
Now I have to find out what the minimum surface area would be. Do I have to use some linear optimization proces on a calculater, If so can somone give me a quick pointer, I have a TI-83. And if not, can somone show me the error of my way?