document.write( "Question 308635: The Perimeter of a triangle is 240 mm. If the longest side is seven times the length of the smallest side and the other side is four times the length of the smallest side. find the lengths of all both sides. \n" ); document.write( "
Algebra.Com's Answer #220671 by mananth(16949)\"\" \"About 
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The Perimeter of a triangle is 240 mm. If the longest side is seven times the length of the smallest side and the other side is four times the length of the smallest side. find the lengths of all both sides.\r
\n" ); document.write( "\n" ); document.write( "let the smallest side be x\r
\n" ); document.write( "\n" ); document.write( "longest side is 7x
\n" ); document.write( "Third side = 4x\r
\n" ); document.write( "\n" ); document.write( "X+4x+7x= 240
\n" ); document.write( "12x=240
\n" ); document.write( "x=20 smallest side\r
\n" ); document.write( "\n" ); document.write( "longest side is 7x = 140mm
\n" ); document.write( "third side = 4x = 80mm
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