document.write( "Question 378613: The hypotenuse of a right triangle is the square root of 13cm. One leg is 1 cm shorter then twice the length of the other leg. Find the lengths of the legs of the right triangle. \n" ); document.write( "
Algebra.Com's Answer #268914 by mananth(16946)![]() ![]() You can put this solution on YOUR website! let the length of one leg be x cm \n" ); document.write( "the other leg = 2x-1 cm \n" ); document.write( "Hypotenuse = sqrt(13) \n" ); document.write( "... \n" ); document.write( "x^2+(2x-1)^2=(13) \n" ); document.write( "x^2+4x^2-4x+1=13 \n" ); document.write( "5x^2-4x+1-13 \n" ); document.write( "5x^2-4x-12=0 \n" ); document.write( "5x^2-10x+6x-12=0 \n" ); document.write( "5x(x-2)+6(x-2)=0 \n" ); document.write( "(x-2)(5x+6)=0 \n" ); document.write( "x= 2 \n" ); document.write( "... \n" ); document.write( "length of one leg = 2cm \n" ); document.write( "other leg = 2x-1 = 3 cm \n" ); document.write( "... \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " |