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trigonometry

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noun trig·o·nom·e·try \ˌtri-gə-ˈnä-mə-trē\

Simple Definition of trigonometry

  • : a branch of mathematics that deals with relationships between the sides and angles of triangles

Source: Merriam-Webster's Learner's Dictionary

Full Definition of trigonometry

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

Origin of trigonometry

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


First Known Use: 1614



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