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MathNet 2014 Question 1

Math Olympiad Vault · MathNet 2014

Question 1

Triangle $ABC$ is given. Let $M$ be a midpoint of segment $AB$ and $T$ be a midpoint of arc $BC$ not containing $A$ of circumcircle of $ABC$. Let $K$ be a point inside triangle $ABC$ such that $MATK$ is an isosceles trapezoid with $AT||MK$. Show that $AK = KC$.

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