document.write( "Question 62988: An isosceles triangle has a perimeter of 55 cm. Find the length of one of the equal sides if the third side is 15 cm long. \n" ); document.write( "
Algebra.Com's Answer #43824 by benni1013(206)\"\" \"About 
You can put this solution on YOUR website!
An isoceles triangle has two equal sides thus the two sides missing must be equal so your equation will look like this:\r
\n" ); document.write( "\n" ); document.write( "s+s+15=55
\n" ); document.write( "2s+15=55
\n" ); document.write( "2s=40
\n" ); document.write( "s=20
\n" ); document.write( "
\n" );