supplementary angle

noun

An angle that, when added to another referenced angle, produces an angle of 180 degrees.

“Angle A is 40°, and its supplementary angle, B, is 140°.”

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Meanings

nounsupplementary angle (plural supplementary angles)

plural supplementary angles

  1. geometryAn angle that, when added to another referenced angle, produces an angle of 180 degrees.

    Angle A is 40°, and its supplementary angle, B, is 140°.

Translations

Polish kąt przyległy
  • kąt przyległysupplementary angle
Cite this entry
APA

supplementary angle. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/supplementary%20angle

MLA

“supplementary angle.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/supplementary%20angle. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “supplementary angle,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/supplementary%20angle.

Source: supplementary angle on Wiktionary, CC BY-SA 4.0.