document.write( "Question 367691: A rectangle has an area of 180 centimeters squared and a perimeter of 54 centimeters. What are its dminesions? \n" ); document.write( "
Algebra.Com's Answer #262099 by mananth(16946)![]() ![]() You can put this solution on YOUR website! let length be L & width be W \n" ); document.write( "2(L+W) = 54 \n" ); document.write( "L+W = 27 \n" ); document.write( "LW = 180 \n" ); document.write( "L= 180/W \n" ); document.write( ".. \n" ); document.write( "180/W + W = 27 \n" ); document.write( "(180+W^2)/W = 27 \n" ); document.write( "180+W^2 = 27W \n" ); document.write( "W^2-27W+180=0 \n" ); document.write( "W^2-15W-12W+180=0 \n" ); document.write( "W(W-15)-12(W-15)=0 \n" ); document.write( "(W-15)(W-12)=0 \n" ); document.write( "W= 15 OR 12\r \n" ); document.write( "\n" ); document.write( "The dimensions are 15cm by 12 cm\r \n" ); document.write( "\n" ); document.write( ".. \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " |