supplementary angle

noun

Definition of supplementary angle

: one of two angles or arcs whose sum is 180° usually used in plural

First Known Use of supplementary angle

circa 1924, in the meaning defined above

Keep scrolling for more

Learn More about supplementary angle

Statistics for supplementary angle

Look-up Popularity

Time Traveler for supplementary angle

The first known use of supplementary angle was circa 1924

See more words from the same year

Comments on supplementary angle

What made you want to look up supplementary angle? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

having no equal

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Latin Quiz

  • roman forum
  • Which of the following months comes from a Latin word for “ten”?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!