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SINCE 1828
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plane geometry

noun
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Definition of plane geometry

: a branch of elementary geometry that deals with plane figures

Examples of plane geometry in a Sentence

Recent Examples on the Web All this talk of plane geometry is hard to visualize, so L’Engle’s 1962 novel comes complete with a diagram. — refinery29.com, "A Wrinkle In Time," 7 Mar. 2018

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

First Known Use of plane geometry

1747, in the meaning defined above

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Time Traveler for plane geometry

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The first known use of plane geometry was in 1747

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Cite this Entry

“Plane geometry.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/plane%20geometry. Accessed 29 Oct. 2020.

More from Merriam-Webster on plane geometry

Britannica.com: Encyclopedia article about plane geometry

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