



 
Max, Use the theorem that THE TWO TANGENTS FROM A POINT TO A CIRCLE HAVE THE SAME LENGTH. For a triangle ABC let x be the length of the tangents from A to the incircle, y from B, and z from C. Then compute a + b  c in terms of x, y, and z. If you need more help, look up the term "incircle" on the internet. Chris  


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