# Geometry/Related Articles

< Geometry

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*See also changes related to Geometry, or pages that link to Geometry or to this page or whose text contains "Geometry".*

## Parent topics

- Mathematics [r]: The study of quantities, structures, their relations, and changes thereof.
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## Subtopics

- Elementary geometry [r]:
*Add brief definition or description* - Analytic geometry [r]:
*Add brief definition or description* - Differentialgeometry [r]:
*Add brief definition or description* - Topological manifold [r]:
*Add brief definition or description* - Descriptive geometry [r]:
*Add brief definition or description* - Discrete geometry [r]:
*Add brief definition or description*

- Euclid's Elements [r]: Mathematical and geometric treatise consisting of 13 books written by the Greek mathematician Euclid in Alexandria circa 300 BC.
^{[e]} - Relativity theory [r]:
*Add brief definition or description*

- Space (mathematics) [r]: A set with some added structure, which often form a hierarchy, i.e., one space may inherit all the characteristics of a parent space.
^{[e]} - Cartesian coordinates [r]: Set of real numbers specifying the position of a point in two- or three-dimensional space with respect to orthogonal axes.
^{[e]} - Alphabet [r]: Writing system in which symbols - single or multiple letters, such as <a> or <ch> - represent phonemes (significant 'sounds') of a language.
^{[e]} - Pythagoras [r]: Greek mathematician and thinker of the 6th century BCE.
^{[e]} - Great Pyramid of Giza [r]: Largest and oldest of the pyramids in the Giza Necropolis of Greater Cairo, Egypt; was the tallest building for nearly 4,000 years, and is the largest pyramid ever constructed.
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