What would the total surface area of a cobical box be if each side is double ?
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The total surface area will be four fords of the initial surface area
Surface area =(lb + lh + bh)*2
Since each side is doubled
=(2l*2b +2l*2h +2b*2h)*2
=2*2(lb +lh +bh) *2
=4<(lb + lh +bh) *2>
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