document.write( "Question 777534: The problem is: The perimeter of a triangle is 84cm. Two sides are three times the length of the third side. What are the lengths of the three sides? \r
\n" ); document.write( "\n" ); document.write( "I cannot figure out what formula to use to solve it.
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Algebra.Com's Answer #474141 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( " is the third side and is each of the other two sides. The perimeter is the sum of all the sides.\r
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\n" ); document.write( "\n" ); document.write( "John
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\n" ); document.write( "Egw to Beta kai to Sigma
\n" ); document.write( "My calculator said it, I believe it, that settles it
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