SOLUTION: the total surface area of a cube is 54.how long is its edge

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Question 811316: the total surface area of a cube is 54.how long is its edge

Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
Let = length of it's edge
= surface area of one side
= surface area of the cube
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The edge is 3 units long

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