This math topic focuses on the geometry of circles, specifically involving tangent triangles where one must find the missing angle. It encompasses a range of questions where learners are given one angle of a triangle and asked to determine another. Solutions are provided in a multiple-choice format, testing the ability to apply geometric principles and understanding of circle properties and triangle angle sums. It is designed for intermediate level learners, aimed at developing and assessing skills in solving problems related to the geometry of circles and tangent triangles.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.