document.write( "Question 1041250: The whole surface of a rectangle solid is 448sq. cm. The length of the solid is twice its breadth and the height is half its breadth. Find the volume of the solid. \n" ); document.write( "
Algebra.Com's Answer #656280 by ankor@dixie-net.com(22740)\"\" \"About 
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The whole surface of a rectangle solid is 448sq. cm.
\n" ); document.write( " The length of the solid is twice its breadth and the height is half its breadth.
\n" ); document.write( " Find the volume of the solid.
\n" ); document.write( ":
\n" ); document.write( "let x = the breadth
\n" ); document.write( "then
\n" ); document.write( "2x = the length
\n" ); document.write( "and
\n" ); document.write( ".5x = the height
\n" ); document.write( ":
\n" ); document.write( "The surface area:
\n" ); document.write( "2(x*2x) + 2(x*.5x) + 2(2x*.5x) = 448
\n" ); document.write( "divide by 2, multiply
\n" ); document.write( "2x^2 +.5x^2 + x^2 = 224
\n" ); document.write( "3.5x^2 = 224
\n" ); document.write( "x^2 = 224/3.5
\n" ); document.write( "x^2 = 64
\n" ); document.write( "x = \"sqrt%2864%29\"
\n" ); document.write( "x = 8 is the breadth
\n" ); document.write( "then
\n" ); document.write( "2(8) = 16 cm is the length
\n" ); document.write( "and
\n" ); document.write( ".5(8) = 4 cm the height
\n" ); document.write( "therefore
\n" ); document.write( "Vol = 8 * 16 * 4 = 512 cu/cm
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "we can check this easily
\n" ); document.write( "x*2x*.5x = 512
\n" ); document.write( "x^3 = 512
\n" ); document.write( "Find the cube root
\n" ); document.write( "x = 8
\n" ); document.write( " \n" ); document.write( "
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