Definition--Angle Concepts--Supplementary Angles
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Geometry >> Angles and Planes >> Definition of an Angle

Definition--Angle Concepts--Supplementary Angles

Supplementary Angles

Supplementary Angles

Topic

Angles

Definition

Supplementary angles are two angles whose measures add up to 180 degrees.

Description

Supplementary angles are a fundamental concept in geometry, often used in solving problems involving linear pairs and angle relationships. They are frequently encountered in trigonometry, where the sine of an angle is equal to the sine of its supplement. In real-world applications, supplementary angles are used in design and architecture to ensure that elements fit together correctly, such as in the construction of linear structures. In education, understanding supplementary angles helps students develop skills in angle measurement and geometric reasoning, forming a basis for more advanced studies in mathematics.

Supplementary Angles
Can you identify the supplementary angles 
in the Leaning Tower of Pisa?

For a complete collection of terms related to Angles click on this link: Angles Collection.

Common Core Standards CCSS.MATH.CONTENT.2.G.A.1, CCSS.MATH.CONTENT.4.MD.C.5, CCSS.MATH.CONTENT.4.G.A.1, CCSS.MATH.CONTENT.7.G.B.5
Grade Range 4 - 8
Curriculum Nodes Geometry
    • Angles and Planes
        • Definition of an Angle
Copyright Year 2013
Keywords angle, definitions, glossary term