document.write( "Question 746423: A rectangle has a perimeter of 336 square inches. The length is 21 inches long. Find the width
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Algebra.Com's Answer #454273 by Cromlix(4381)\"\" \"About 
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A perimeter would be measured in inches not
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\n" ); document.write( "I think you mean an area of 336 sq. inches.
\n" ); document.write( "Area of a rectangle = l x b
\n" ); document.write( " Therefore the width (breadth) = Area/length
\n" ); document.write( " = 336/21 = 16 inches.
\n" ); document.write( "If you mean that the perimeter = 336 inches
\n" ); document.write( "and you have a length of 21 inches then you would double
\n" ); document.write( "21 = 42 inches. Subtract 42 inches from 336 inches and divide
\n" ); document.write( "by two = 147 inches for the width.
\n" ); document.write( "A perimeter consists of two lengths and two widths
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