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MathNet 2013 Question 99

Math Olympiad Vault · MathNet 2013

Question 99

A circle passing through the midpoint $M$ of the side $B C$ and the vertex $A$ of a triangle $A B C$ intersects the sides $A B$ and $A C$ for the second time at the points $P$ and $Q$, respectively. Show that if $\angle B A C=60^\circ$ then
$$
A P+A Q+P Q\lt A B+A C+\frac{1}{2} B C
$$