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plane trigonometry

American  

noun

Mathematics.
  1. the branch of trigonometry dealing with plane triangles.


Etymology

Origin of plane trigonometry

First recorded in 1800–10

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Variety of college courses in mathematics Freshmen courses in mathematics differ widely, but the most common subjects are advanced algebra, plane trigonometry, and solid geometry.

From College Teaching Studies in Methods of Teaching in the College by Klapper, Paul

I then went on with Algebra and Euclid, and took up plane trigonometry; but I devoted most of my time to electricity and magnetism.

From Men of Invention and Industry by Smiles, Samuel

A kind of plane trigonometry had been known to the ancient Egyptians.

From The Teaching of Geometry by Smith, David Eugene

Square, definition of; belongs to plane trigonometry, 11-l.

From Morals and Dogma of the Ancient and Accepted Scottish Rite of Freemasonry by Pike, Albert

The harbour plans and coast sheets are constructed on the simple principles of plane trigonometry by the surveying officers.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 8 "Chariot" to "Chatelaine" by Various

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