Question 766701

let the length of one side be {{{L}}}

given {{{A=240cm^2}}}

surface area of a cube  is {{{A=6L^2}}}

{{{240cm^2=6L^2}}}...solve for {{{L}}}

{{{240cm^2/6=L^2}}}

{{{40cm^2=L^2}}}

{{{sqrt(40cm^2)=L}}}

{{{6.325cm=L}}}