Three distinct segments are chosen at random among the segments whose end-points are the vertices of a regular 12-gon. Find the probability that the lengths of these three segments are the three side lengths of a triangle with positive area. Provide your answer in the form \(\frac{k}{m}\) where the fraction is simplified, and give the value of \(k + m\).

Let's think step by step and output the final answer within \boxed{}.
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