Word.ws English Dictionary

supplementary angles

supplementary angles is the plural of supplementary angle.

Meaning of supplementary angle

Noun

supplementary angle (plural supplementary angles)

  1. 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°.

Noun

supplementary angles pl (plural only)

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

Questions about supplementary angles

What does supplementary angles mean?
Supplementary angles means a pair of angles that sum to 180 degrees.
What is supplementary angles the plural of?
Supplementary angles is the plural of supplementary angle.
What part of speech is supplementary angles?
Supplementary angles is a noun.

Words near supplementary angles in the dictionary

  1. supplementarily
  2. supplementariness
  3. supplementarity
  4. supplementary
  5. supplementary angle
  6. supplementary angles
  7. supplementary character
  8. supplementary characters
  9. supplementary motor area
  10. supplementary motor areas
  11. supplementary plane

Source and license

Adapted from Wiktionary: supplementary angles (page history and authors); supplementary angle (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “supplementary angles.” Word.ws, https://word.ws/supplementary_angles. Based on Wiktionary, CC BY-SA 4.0.