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An Open Rectangular Box Having a Volume of 4in3 Is

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An open rectangular box having a volume of 4in3 is to be constructed from a tin sheet. Find the dimensions of such a box if the amount of material used in its construction is to be minimal. ​ Hint: Let the dimensions of the box be x by y by z. Then, xyz = 108 and the amount of material used is given by S = xy + 2yz + 2xz. Show that An open rectangular box having a volume of 4in<sup>3</sup> is to be constructed from a tin sheet. Find the dimensions of such a box if the amount of material used in its construction is to be minimal. ​ Hint: Let the dimensions of the box be x by y by z. Then, xyz = 108 and the amount of material used is given by S = xy + 2yz + 2xz. Show that   Minimize f(x, y)  A)  x = 1; y = 1; z = 2 B)  x = 2; y = 2; z = 1 C)  x = 2; y = 1; z = 1 D)  x = 2; y = 1; z = 2 Minimize f(x, y)


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