document.write( "Question 1122983: The area of a rectangular floor is 72m square. If its width is half of its length, find its perimeter.
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Algebra.Com's Answer #739175 by ayhanca(1)\"\" \"About 
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The sides are a and b.
\n" ); document.write( "Area = a*b = 72.\r
\n" ); document.write( "\n" ); document.write( "a=b/2\r
\n" ); document.write( "\n" ); document.write( "(b/2)*b=72\r
\n" ); document.write( "\n" ); document.write( "b^2=144\r
\n" ); document.write( "\n" ); document.write( "b=12 \r
\n" ); document.write( "\n" ); document.write( "a=12/2 = 6\r
\n" ); document.write( "\n" ); document.write( "Perimeter = 2a+2b = 2(6)+2(12) = 12+24 = 36m
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