One of the sections she explored was on circle theorems. The page provided a visually engaging representation of a circle, with interactive segments and angles that she could modify. This hands-on approach made understanding the abstract concepts much easier. Following the explanatory sections, Alex found a series of exercises and quizzes designed to test her understanding. These ranged from simple multiple-choice questions about the properties of different shapes to more complex problems requiring her to calculate the area of irregular polygons.