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Angle Pairs

Understand complementary angles as angles whose sum is 90 degrees and supplementary angles as angles whose sum is 180 degrees.

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Geometry Definitions and Introduction to Proof
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    Supplementary Angles
    Teacher Contributed
    In the following diagram, \(m\angle ABC = 30.0^\circ\). Find \(m\angle DBE\).
    B
    A
    C
    D
    E
    qid: 100046
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