Quiz

What are you talking about? Is a degenerate triangle, where all sides lie on the same line, considered to exist, but a degenerate polygon doesn't?

Yeah, and a regular triangle is actually a quadrilateral where 3 vertices lie on the same line. :D:D:D

Added after 3 minutes
Specifically for people like you, I'll rephrase the question.
In city N (shape doesn't matter), there is a "ring road" consisting of 111 straight sections that do not intersect each other. A straight highway runs through the city. Is it possible for a car traveling on the highway through the city to cross all 111 sections of the "ring road"?