"Anchor one end of a line segment and rotate the line segment around that point for one full turn, the closed curve traced by the other end of the line segment is a circle. This fixed point is the center of the circle, while the line segment itself is the radius of the circle. Therefore, we can define a circle as the set of all points that are equidistant from a fixed point..." Tony Dodge stood at the podium with a tense expression as he lectured, "So, am I being a bit too boring?"
Below the podium, several girls let their minds wander in front of their desks. Some were daydreaming, some were doodling in their workbooks, some were passing notes, and there were also students who were slightly more serious about their studies, sneakily writing today's homework.
Aiden stood outside in the corridor, observing the situation inside through the one-way glass, with Veronica by his side. The students inside couldn't see the two of them through this window.
