document.write( "Question 65247: The perimeter of a triangle is 50 centimeters. Side b is 4 centimeters longer than side a. Side c is 9 centimeters shorter than three times the length os side a. find the length of each side. \n" ); document.write( "
Algebra.Com's Answer #45762 by funmath(2933)![]() ![]() ![]() You can put this solution on YOUR website! The perimeter of a triangle is 50 centimeters. Side b is 4 centimeters longer than side a. Side c is 9 centimeters shorter than three times the length os side a. find the length of each side. \n" ); document.write( "Let side a be: a \n" ); document.write( "Then side b is: a+4 \n" ); document.write( "and side c is: 3a-9 \n" ); document.write( "Perimeter is 50 means that if we add the sides, we get 50. \n" ); document.write( "Problem to solve: \n" ); document.write( "(a)+(a+4)+(3a-9)=50 \n" ); document.write( "5a-5=50 \n" ); document.write( "5a-5+5=50+5 \n" ); document.write( "5a=55 \n" ); document.write( "5a/5=55/5 \n" ); document.write( "a=11 \n" ); document.write( "Side a is: a=11 cm \n" ); document.write( "side b is: a+4=11+4=15 cm \n" ); document.write( "side c is: 3a-9=3(11)-9=33-9=24 cm \n" ); document.write( ": \n" ); document.write( "Sanity check: \n" ); document.write( " If we add all the sides together, do we get 50 cms? \n" ); document.write( "11+15+24=50 ? \n" ); document.write( "50=50 \n" ); document.write( "It appears that we're sane. \n" ); document.write( "Happy Calculating!!!! \n" ); document.write( " |