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MathNet 2017-part-04 — 176 problems (EN–VI) Question 49

Math Olympiad Vault · MathNet 2017-part-04 — 176 problems (EN–VI)

Question 49

Let the triangle $\triangle ABC$ be given. On the arc $\overset{\frown}{BC}$ of the circumcircle of $\triangle ABC$ which does not contain the point $A$, points $X$ and $Y$ are chosen such that $\angle BAX = \angle CAY$. Let $M$ be the midpoint of the chord $AX$. Prove that $\overline{BM} + \overline{CM} \gt \overline{AY}$.

Question illustration