What are supplementary angles? Learn the definition and properties of supplementary angles, and see the theorems related to supplementary angles with examples.

Learn how to identify supplementary and vertical angles, and see examples that walk through sample problems step-by-step for you to improve your math knowledge and skills.

Learn to define complementary, supplementary, vertical, and adjacent angles. Discover how to find these angles and what two of each angle add up to, and see examples.

What are same side interior angles and the same side interior angles theorem? Learn these definitions, the SSIA theorem, and how to use the theorem in math.

Learn the difference between complementary and supplementary angles with our bite-sized video lesson! See examples and test your knowledge with a quiz.

This lesson covers five types of angles pairs: complementary angle pairs, supplementary angle pairs, vertical angle pairs, linear or straight angle pairs, and adjacent angle pairs.

The angles are across the intersection from each other and have the same angle measurement. Are vertical angles supplementary or complementary? Vertical angles can be supplementary …

Explore supplementary angles in this 5-minute video lesson. Learn about their properties and theorems, followed by a quiz to test your geometry knowledge.

What is a linear pair? Learn the linear pair definition, what the linear pair postulate and theorem states, and see examples of linear pairs of angles.

Explore the definition of complementary angles and their types: adjacent and non-adjacent. Also, learn how to find the complement of an angle with examples and applications.