document.write( "Question 975496: the ratio height: length: depth of this cuboid is 2:3:4\r
\n" ); document.write( "\n" ); document.write( "the total surface area is 1300cm^2.\r
\n" ); document.write( "\n" ); document.write( "find the volume of the cuboid.
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Algebra.Com's Answer #614367 by phillywily(18)\"\" \"About 
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H : L : D
\n" ); document.write( "2 : 3 : 4
\n" ); document.write( "2y : 3y : 4y
\n" ); document.write( "1300 = 2(2y)(3y) + 2(2y)(4y) + 2(3y)(4y)
\n" ); document.write( "1300 = 12y² + 16y² + 24y²
\n" ); document.write( "1300 = y² (12+15+24)
\n" ); document.write( "1300/y² = 52
\n" ); document.write( "y² = 1300/52
\n" ); document.write( "y = √25
\n" ); document.write( "y = 5
\n" ); document.write( "Volume
\n" ); document.write( "= 10x15x20
\n" ); document.write( "= 3000cm²
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