Complementary and supplementary angles - animation

It is important to learn to identify the different angles that may appear in a Physic problem.

The following animation will help you see the angle relationships between two perpendicular rays and the Cartesian coordinate system.

    • Two angles are called complementary if their sum is 900.
    • Two angles are called supplementary if their sum is 1800.

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Modify the α angle between the red ray and the horizontal axis to see its relationship with the following complementary and supplementary angles:

β = 900 – α.
γ = 1800 – β = 900 + α.
δ = 1800 – α = 900 + β.

Complementary and supplementary angles





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