document.write( "Question 954415: Three metallic cubes of side 3cm, 4cm and 5cm respectively are melted and are recast into a single cube. find the total surface area of the new cube. \n" ); document.write( "

Algebra.Com's Answer #582874 by Fombitz(32388) $\"\"$ $\"About$

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The volume of metal is,
\n" ); document.write( " $\"V=3%5E3%2B4%5E3%2B5%5E3\"$
\n" ); document.write( " $\"V=27%2B64%2B125\"$
\n" ); document.write( " $\"V=216\"$
\n" ); document.write( " $\"s%5Bn%5D%5E3=216\"$
\n" ); document.write( " $\"s%5Bn%5D=6\"$
\n" ); document.write( "So the cube has a side length of 6 cm.
\n" ); document.write( "The surface area of the cube is,
\n" ); document.write( " $\"SA=6s%5E2\"$
\n" ); document.write( " $\"SA=6%286%29%5E2\"$
\n" ); document.write( " $\"SA=216\"$ $\"cm%5E2\"$
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