supplementary angles

plural noun

: two angles or arcs whose sum is 180 degrees

Word History

First Known Use

circa 1924, in the meaning defined above

Time Traveler
The first known use of supplementary angles was circa 1924

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Dictionary Entries Near supplementary angles

supplementary angle

supplementary angles

supplementary cost

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Cite this Entry

“Supplementary angles.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/supplementary%20angles. Accessed 29 Nov. 2024.

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