document.write( "Question 975496: the ratio height: length: depth of this cuboid is 2:3:4\r
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document.write( "the total surface area is 1300cm^2.\r
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document.write( "find the volume of the cuboid. \n" );
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Algebra.Com's Answer #614367 by phillywily(18)![]() ![]() ![]() You can put this solution on YOUR website! 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 \n" ); document.write( " |