This topic focuses on the geometry of circles, specifically on calculating the values of angles formed by two tangents to a circle. Each problem presents a different configuration of a circle and tangents, and students are asked to determine the value of angle X. The problems are part of a broader review of circular geometry rules. Solutions are presented in a multiple-choice format, offering various angle values for students to select from. This set of problems is ideal for practicing the understanding of tangential angles and their properties related to circles.