document.write( "Question 726959: a rectangle has perimeter 56cm. if 4 cm is taken from the length and added to the width, the rectangle becomes a square. Find the dimensions of the original rectangle. \n" ); document.write( "
Algebra.Com's Answer #444908 by W3L(1)\"\" \"About 
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Let length and width = L and W.\r
\n" ); document.write( "\n" ); document.write( "from statement \"A rectangle has perimeter 56 cm. If 4 cm is taken from the length and added to the width, the rectangle becomes a square\", you can deduce
\n" ); document.write( "2L + 2W = 56 ( its sides make up its perimeter )\r
\n" ); document.write( "\n" ); document.write( "L - 4 = W + 4\r
\n" ); document.write( "\n" ); document.write( "L = W + 8
\n" ); document.write( "sub L = W + 8 into 2L + 2W = 56\r
\n" ); document.write( "\n" ); document.write( "2 ( W + 8 ) + 2W = 56
\n" ); document.write( "2W + 16 + 2W = 56
\n" ); document.write( "4W = 40
\n" ); document.write( "W = 10\r
\n" ); document.write( "\n" ); document.write( "sub W = 10 into L = W + 8
\n" ); document.write( "L = 10 + 8 = 18\r
\n" ); document.write( "\n" ); document.write( "original dimensions of rectangle, length = 18cm and width = 10cm
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