document.write( "Question 389125: what is the longest side of a triangle with a perimeter of 39 if a similar triangle has side lengths of 3,4, and 6
\n" ); document.write( "1)12
\n" ); document.write( "2)13
\n" ); document.write( "3)18
\n" ); document.write( "4)20
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Algebra.Com's Answer #275636 by Alan3354(69443)\"\" \"About 
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3 + 4 + 6 = 13
\n" ); document.write( "39/13 = 3
\n" ); document.write( "3*6 = 18, the longest side
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