This topic focuses on applying the Intersecting Chords Theorem within the context of circle geometry. It specifically targets the calculation of unknown lengths, denoted as X, in various circle diagrams where chords intersect. Each problem presents a diagram of a circle with intersecting chords, requiring the determination of the length of segment X based on the theorem. Multiple-choice answers are provided for each question, allowing the learner to select the correct length of X after performing the necessary calculations. This topic is best suited for introductory practice of circular geometry rules.