КОНКУРЕНТНИ ПЕРПЕНДИКУЛЯРИ, ОПРЕДЕЛЕНИ ОТ ПРАВИЛНИ МНОГОЪГЪЛНИЦИ

The paper is a secondary student elaboration under the guidance of Assoc. Prof. Veselin Nenkov. It contains new results on the topic, which brought the first award to the authors during the national round of the International competition MITE (Methodology and information technologies in education) in February, 2020. The elaboration is dedicated to concurrent lines generated by points on Euler lines of in-polygons. [ABSTRACT FROM AUTHOR]