Skip to content / Đến nội dung
ThichHocToan.com

MathNet 2009-part-02 — 175 problems (EN–VI) Question 160

Math Olympiad Vault · MathNet 2009-part-02 — 175 problems (EN–VI)

Question 160

Given a triangle $ABC$ ($BC \lt AB$). Through the point $C$ a line $l$ is drawn perpendicular to the bisector $BE$ of the angle $\angle B$. The line $l$ meets $BE$ at the point $F$ and the median $BD$ at the point $G$. Prove that the segment $DF$ bisects the segment $EG$.