document.write( "Question 41792: Question\r
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document.write( "A paper box without a lid is 25 cm long, 16 cm wide and 5 cm deep. How many square centimeters of paper have been used to make the box ?\r
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document.write( "Please help to answer thsi question. Thank you so much. \n" );
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Algebra.Com's Answer #26951 by fractalier(6550)![]() ![]() You can put this solution on YOUR website! Well, the box has 5 rectangular sides...a front and back, a left and right, and a bottom...so we add all 5 rectangular areas to get our answer... \n" ); document.write( "Total Area = 2(25 x 5) + 2(16 x 5) + (25 x 16) = \n" ); document.write( "= 2(125) + 2(80) + 400 = \n" ); document.write( "= 250 + 160 + 400 = \n" ); document.write( "= 810 sq cm \n" ); document.write( " |