IOM 2019, Блиц — Задача 17

OLYMPIAD OF METROPOLISES, Moscow, September 2, 2019 · 2 септември 2019 г.

Условие

In triangle $ABC$, $\angle CAB = 19^{\circ}$ and $\angle BCA = 22^{\circ}$. $E$ is a point on $CA$ such that $\angle CEB = 60^{\circ}$ and $F$ is a point on $AB$ such that $\angle AEF = 60^{\circ}$. Find $\angle BFC$. Give the answer in degrees.

Решение

---

Оригинал в Архива: blitz-en-all-task-final.pdf