document.write( "Question 550267: If area and perimeter of a rectangle are given:How can i find out the dimensions?
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document.write( "Kindly tell me a method to solve such type of problem. K. Sharrma \n" );
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Algebra.Com's Answer #358564 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Do it like this: \n" ); document.write( "---------------- \n" ); document.write( "Area of a rectangular field is 120 sq.m and perimeter is 46 m. Findout the dimensions of the field. \n" ); document.write( "---------------- \n" ); document.write( "L*W = 120 \n" ); document.write( "L + W = 23 --> W = 23 - L \n" ); document.write( "-------------- \n" ); document.write( "L*(23 - L) = 120 \n" ); document.write( "23L -L^2 = 120 \n" ); document.write( "L^2 - 23L + 120 = 0 \n" ); document.write( "(L - 8)*(L - 15) = 0 \n" ); document.write( "------------- \n" ); document.write( "--> 8 by 15 \n" ); document.write( "=================== \n" ); document.write( "If it's not factorable, use the quadratic equation. \n" ); document.write( " \n" ); document.write( " |