Complementary And Supplementary Angle

Introduction: In geometry, complementary and supplementary angles are pairs of angles with specific relationships in terms of their sum.

Understanding Complementary Angles:

Complementary angles are two angles whose measures add up to 90 degrees. They can be adjacent (sharing a common side and vertex) or non-adjacent. When put together, they form a right angle. Understanding Supplementary Angles:

Supplementary angles are two angles whose measures add up to 180 degrees. Like complementary angles, they can be adjacent or non-adjacent. When adjacent, they form a straight line. Example of Complementary Angles:

If one angle measures 30 degrees, its complementary angle will measure 60 degrees because 30 + 60 = 90. Example of Supplementary Angles:

If one angle measures 110 degrees, its supplementary angle will measure 70 degrees because 110 + 70 = 180. Key Points to Remember:

Complementary angles always sum up to 90 degrees. Supplementary angles always sum up to 180 degrees.