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MathNet 2010 — Part 07 Question 111

Math Olympiad Vault · MathNet 2010 — Part 07

Question 111

Triangle $A B C$ has $A B=5$, $B C=7$, and $C A=8$. New lines not containing but parallel to $A B$, $B C$, and $C A$ are drawn tangent to the incircle of $A B C$. What is the area of the hexagon formed by the sides of the original triangle and the newly drawn lines?