Skip to main content
OlympiadHQ

Browse · MathNet

Print

Junior Mathematical Olympiad, September 2019

Netherlands 2019 geometry

Problem

Point lies on side of triangle . Angle in triangle is equal to angle in triangle , and angle in triangle is equal to angle in triangle . The given information is not enough to derive the exact shape of triangle . However, you can still derive that one of the given statements below is always false. Which statement is it? By we denote the length of line segment .

A) B) C) D) E)
Solution
E)
Final answer
E

Techniques

Angle chasingDistance chasing