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Windows Live® Search Results- Plane geometry - Wikipedia, the free encyclopedia
In mathematics , plane geometry may mean: geometry of a plane , geometry of the Euclidean plane , or sometimes a plane is any flat surface that extends without end in all ... - Plane (mathematics) - Wikipedia, the free encyclopedia
In mathematics , a plane is a two-dimensional manifold or surface that is perfectly flat . Informally, it can be thought of as an infinitely vast and infinitesimally thin sheet ... - Plane Geometry -- from Wolfram MathWorld
That portion of geometry dealing with figures in a plane, as opposed to solid geometry. Plane geometry deals with the circle, line, polygon, etc.
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Plane Geometry
Encyclopedia Article
Plane Geometry, branch of elementary geometry dealing with the properties of flat surfaces and of planar figures, such as the triangle or the circle. This branch is also known as Euclidean geometry, after the Greek mathematician Euclid, who first studied the subject in the 4th century bc. His comprehensive treatise Elements remained authoritative until the rise of so-called non-Euclidean geometry in the 19th century.
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