trig·​o·​nom·​e·​try | \ ˌtri-gə-ˈnä-mə-trē How to pronounce trigonometry (audio) \

Definition of trigonometry

: the study of the properties of triangles and trigonometric functions and of their applications

Examples of trigonometry in a Sentence

Recent Examples on the Web Students can use it for trigonometry and calculus too, though there are better options on this list for more advanced courses. Rachel Klein, Popular Mechanics, 26 July 2022 This geometric structure is closely connected to important ideas in trigonometry, like the angle sum and difference formulas for sine and cosine, the theory of rotations of the plane, and e, the base of the natural logarithm function. Quanta Magazine, 23 Sep. 2021 This allows the software to do some basic trigonometry to calculate the range and orientation of objects in the environment. Sam Abuelsamid, Forbes, 29 Dec. 2021 Right now, for example, Theo was playing Liberate Hong Kong on his computer while in trigonometry class at the same time. Gish Jen, The New Yorker, 15 Nov. 2021 District spokesperson Diana Meza told the Riverside-Press Enterprise that the woman was teaching a trigonometry class at John W. North High School. Celina Tebor, USA TODAY, 22 Oct. 2021 District spokesperson Diana Meza told the Riverside-Press Telegram that the instructor, whose name was not released for personnel and privacy reasons, was teaching a trigonometry class at John W. North High School. Los Angeles Times, 21 Oct. 2021 These roots of unity possess a remarkably rich structure that connects to high school math like trigonometry and rotations of the plane as well as ongoing research that involves some of the great unanswered questions in modern math. Quanta Magazine, 23 Sep. 2021 The ancient Greeks invented trigonometry to study the motion of the stars. Kevin Hartnett, Wired, 20 June 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'trigonometry.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of trigonometry

1614, in the meaning defined above

History and Etymology for trigonometry

New Latin trigonometria, from Greek trigōnon + -metria -metry

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Time Traveler for trigonometry

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The first known use of trigonometry was in 1614

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Dictionary Entries Near trigonometry

trigonometric solution



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Statistics for trigonometry

Last Updated

31 Jul 2022

Cite this Entry

“Trigonometry.” Dictionary, Merriam-Webster, Accessed 17 Aug. 2022.

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More from Merriam-Webster on trigonometry

Nglish: Translation of trigonometry for Spanish Speakers Encyclopedia article about trigonometry


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