This comprehensive guide explores the concepts of interior and exterior angles in polygons, providing formulas, examples, and practice problems. It covers regular and irregular polygons, offering a thorough understanding of angle calculations and relationships.

**Sum of interior angles**formula: (n-2) × 180°, where n is the number of sides**Sum of exterior angles**is always 360° for any polygon**Interior angle**of a regular polygon: ((n-2) × 180°) / n**Exterior angle**of a regular polygon: 360° / n- Practice problems cover various scenarios, including finding missing angles and determining the number of sides