document.write( "Question 227543: The hypotenuse of a right triangle is 8 feet less than three times the shorter leg and the longer leg is 8 feet more than twice the shorter leg. Find the lengths of the three sides of the triangle \n" ); document.write( "
Algebra.Com's Answer #169049 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! c=3a-8 \n" ); document.write( "b=2a+8 \n" ); document.write( "a^2+b^2=c^2 \n" ); document.write( "a^2+(2a+8)^2=(3a-8)^2 \n" ); document.write( "a^2+4a^2+32a+64=9a^2-48a+64 \n" ); document.write( "5a^2-9a^2+32a+48a+64-64=0 \n" ); document.write( "-4a^2+80a=0 \n" ); document.write( "-4a(a-20)=0 \n" ); document.write( "a-20=0 \n" ); document.write( "a=20 ans. \n" ); document.write( "b=2*20+8=40+8=48 ans. \n" ); document.write( "c=3*20-8=60-8=52 ans. \n" ); document.write( "Proof: \n" ); document.write( "20^2+48^2=52^2 \n" ); document.write( "400+2,304=2,704 \n" ); document.write( "2,704=2,704\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |