supplementary angles

English

Noun

supplementary angles

  1. (geometry) plural of supplementary angle
    Let angle A = 30° and angle B = 10°, so that their supplementary angles are A′ = 150° and B′ = 170°, respectively.

Noun

supplementary angles pl (plural only)

  1. (geometry) A pair of angles that sum to 180 degrees.
    A = 30° and A′ = 150°, so A and A′ are supplementary angles.

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