document.write( "Question 148013: One side of a rectangular stage is 2 meters longer than the other.If the diagonal is 10 meters, then what are the lenghths of the sides? \n" ); document.write( "
Algebra.Com's Answer #108399 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! One side of a rectangular stage is 2 meters longer than the other.If the diagonal is 10 meters, then what are the lenghths of the sides? \n" ); document.write( ". \n" ); document.write( "Let W=width of rectangular stage \n" ); document.write( "W+2 = length of rectangular stage \n" ); document.write( ". \n" ); document.write( "Now, since the we have a \"right angle\" at the corner of the rectangular stage, we can apply Pythagorean theorem: \n" ); document.write( "W^2 + (W+2)^2 = 10^2 \n" ); document.write( "W^2 + W^2 + 4W + 4 = 100 \n" ); document.write( "2W^2 + 4W - 96 = 0 \n" ); document.write( "dividing through by 2: \n" ); document.write( "W^2 + 2W - 48 = 0 \n" ); document.write( "factoring: \n" ); document.write( "(W-6)(W+8) = 0 \n" ); document.write( "The two solutions are {6, -8} \n" ); document.write( "We can toss out the negative solution since that does not make sense. \n" ); document.write( "Therefore we have: \n" ); document.write( "W= 6 meters (width) \n" ); document.write( "W+2 = 6+2 = 8 meters (length) \n" ); document.write( " |