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Euclidean geometry - Wikipedia
Euclidean geometry | Definition, Axioms, & Postulates | Britannica
Euclidean Geometry (Definition, Facts, Axioms and Postulates)
Euclidean Geometry - GeeksforGeeks
Euclids Geometry - Definition, Axioms, Postulates, Examples, …
4.1: Euclidean geometry - Mathematics LibreTexts
Euclidean geometry - Encyclopedia of Mathematics
Euclidean Geometry -- from Wolfram MathWorld