This math topic focuses on the geometry of lines, specifically working with crossing or intersecting lines to determine unknown angles. It extends to problems involving perpendicular and parallel lines. Students are shown diagrams with angles and lines labeled, and they must deduce the value of given angles from multiple choice options. Through these problems, they practice identifying and solving for angles formed by intersecting, parallel, and perpendicular lines, contributing to their understanding of fundamental geometric principles.

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