Answer to Question #274598 in Calculus for Artika

Question #274598

A container with square base, vertical sides, and open top is to have a volume of 1000 . Find the dimensions of the container with minimum surface area.


1
Expert's answer
2021-12-03T14:36:37-0500

Solution;

Let the base be of dimension x by x while the height is y.

The constraint equation is ;

"V=x^2y=1000cm^3"

The objective equation is of the S.A;

"S.A=4xy+x^2"

Using constraint equation;

"y=\\frac{1000}{x^2}"

Substitute into the objective equation;

"S.A=\\frac{4000}{x}+x^2"

For minimum S.A,set derivative equal to zero;

"S.A'=-\\frac{4000}{x^2}+2x=0"

"2x^3=4000"

"x^3=2000"

"x=12.6cm"

"y=\\frac{1000}{12.6^2}=6.3cm"


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