This math topic focuses on solving for angles, specifically within diagrams of pentagonal star arms. It is a part of the broader study of geometry involving intersecting, parallel, and perpendicular lines. Each of the seven questions presents a unique problem requiring the calculation of a specific angle labeled 'X' in given diagrams. Multiple-choice answers are provided for each question, suggesting the need for either application of angle properties or measurement techniques related to intersecting and parallel lines within geometric shapes.

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