Supplementary angles

Supplementary angles are two angles whose measurements add up to 180 degrees, meaning they form a straight line when placed together. They can be adjacent, sharing a common side and forming a straight line, or separate, with no common side but still totaling 180 degrees. This concept is useful in geometry for understanding angles created by intersecting lines, triangles, and other shapes. Essentially, if the sum of two angles equals a straight angle, they are supplementary.