document.write( "Question 102157: My biggest weakness in math is problems with cylinders so please help me out.\r
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document.write( "A cylindrical container including a top and bottom is made from no more than 108(pi) cm-squared of sheet metal. If the radius of the top is 3cm what is the maximum volume that the container can hold? \n" );
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Algebra.Com's Answer #74253 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A cylindrical container including a top and bottom is made from no more than 108(pi) cm-squared of sheet metal. If the radius of the top is 3cm what is the maximum volume that the container can hold? \n" ); document.write( "------------------------ \n" ); document.write( "If radius is 3 cm, area of the top is 9pi sq. cm. \n" ); document.write( "Top + bottom = 18pi sq.cm. \n" ); document.write( "============================= \n" ); document.write( "Surface area of the side is 108pi cm^2 - 18pi cm^2 = 90pi cm^2 \n" ); document.write( "------------------------------ \n" ); document.write( "Formula for the surface of the area = 2pi*r*h \n" ); document.write( "So, 2pi*r*h cm^2 = 90pi cm^2 \n" ); document.write( "rh = 45 \n" ); document.write( "But r=3 \n" ); document.write( "So, h = 45/3 = 15 cm \n" ); document.write( "-------------------------- \n" ); document.write( "Volume = pir^2h \n" ); document.write( "Volume = pi*3^2*15 \n" ); document.write( "Volume = 135pi cm^3 \n" ); document.write( "=================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |