<PRE><B>Question 836596</B>

 use this simple formula to figure it out:

let&#39;s {{{a=15}}},{{{ b=13}}},{{{ c=12}}}


if {{{a+b&gt;c}}}, {{{a+c&gt;b}}}, and {{{b+c&gt;a}}}, than given lengths could represent the measure of the sides of a triangle

{{{a+b&gt;c}}} =&gt; {{{15+13&gt;12}}} =&gt;{{{28&gt;12}}}.............true
 {{{a+c&gt;b}}}=&gt; {{{15+12&gt;13}}} =&gt;{{{27&gt;13}}}.............true
 {{{b+c&gt;a}}} =&gt; {{{13+12&gt;15}}} =&gt;{{{25&gt;15}}}.............true</PRE>