document.write( "Question 911170: the lengths of the sides of a triangle is extended ratio 4:7:9 the premeter is 60cm. what are the lengths of the sides \n" ); document.write( "
Algebra.Com's Answer #552881 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
 
\n" ); document.write( "Hi
\n" ); document.write( "Let x represent the constant of proportionality
\n" ); document.write( "4x+ 7x + 9x = 60cm
\n" ); document.write( "20x = 60
\n" ); document.write( "x = 3
\n" ); document.write( "the lengths of the sides are: 12cm, 21cm, 27cm
\n" ); document.write( "And..checking
\n" ); document.write( "P = 60cm \n" ); document.write( "
\n" );