document.write( "Question 541701: The lengths of 2 sides of a triangle are 4 and 9. What is the range of possible lengths for the 3rd side?\r
\n" ); document.write( "\n" ); document.write( "How do you set up these problems, and how do you solve them?
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Algebra.Com's Answer #354250 by neatmath(302)\"\" \"About 
You can put this solution on YOUR website!

This kind of triangle problem is fairly simple.

\n" ); document.write( "There is a rule for triangle side lengths.

\n" ); document.write( "Each leg must be between the difference and sum of the other two legs (non-inclusively).

\n" ); document.write( "So, since your two legs are 4 and 9, we have:

\n" ); document.write( "\"9-4%3Cs%3C9%2B4\"

\n" ); document.write( "\"5%3Cs%3C13\"

\n" ); document.write( "Therefore the possible length of the third side of your triangle would be:

\n" ); document.write( "any real number between 5 and 13 (not including 5 and 13 of course). Or

\n" ); document.write( "\"5%3Cs%3C13\"

\n" ); document.write( "If the 3rd side of your triangle was 5 or 13, it would be a degenerate triangle which appeared to be a straight line.

\n" ); document.write( "I hope this helps!

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