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if the surface area of a cube is 486 square feet what is the length of one side

 Mar 7, 2016
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Surface area of a cube = 6s^2    where s is the side length.....so...

 

486  = 6s^2    divide both sides by 6

 

81 = s^2       take the square root of both sides

 

9 ft   = s

 

 

 

cool cool cool

 Mar 7, 2016

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