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Jeetaz · Answer 1 · 2016-08-11T21:41:06+0000

A cube's surface is made of 6 squares, (you can count it there are 6 faces :) ). A square's surface area is
${ x }^( 2 )$ x is length of one edge. So we will multiply
${ x }^( 2 )$ by 6 to find the total surface area. The x is given 8, let's plug it in the formula.

$6{ x }^( 2 )\\ \\ 6\cdot { 8 }^( 2 )=6\cdot 64=384\quad square\quad units$

Answer is C

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