Geometria Euclidea
Geometria Euclidea est ratio mathematica, quae Euclides Alexandrinus in  Elementis, libro de geometria, descripsit. Modus Euclidis consistit in axiomatibus ponendis ex quibus multa theoremata concludit. Conclusiones Euclidis, quamquam partim a prioribus mathematicis expositae, ab Euclide primum in una ampla ratione logica ordinatae sunt. Elementa incipiunt geometriâ plani, quae ratio axiomatica, inductio in demonstrationes mathematicas, etiamnunc in ludis docetur. Deinde ad geometriam solidam trium dimensionum procedit. Magna Elementorum pars propositiones continet, lingua geometrica explicatas, quae hodie partes algebrae et theoriae numerorum habentur.

 Angulus
 Circulus
 Diagonalis
 Geometria analytica
 Linea
 Parallelogramma
 Quadrum
 Rectangulum
 Rhombus (geometria)
 Systema coordinatarum
 Theorema Pythagorae
 Triangulum

Notae

Bibliographia 
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 Heath, L. (1925) 1956. The Thirteen Books of Euclid's Elements, ed. secunda. Facsimile. (Prima editio Cambridge University Press.) Novi Eboraci: Dover Publications. 3 vol.: ISBN 0-486-60088-2 (vol. 1), ISBN 0-486-60089-0 (vol. 2), ISBN 0-486-60090-4 (vol. 3).
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 Nagel, E., et J. R. Newman. 1958. Gödel's Proof. Novi Eboraci: New York University Press.
 Tarski, Alfred. 1951. A Decision Method for Elementary Algebra and Geometry. Berlekeiae: University of California Press.

Nexus externi 
 Hazewinkel, Michiel, ed. (2001) [1994]. https://www.encyclopediaofmath.org/index.php/Euclidean_geometry "Euclidean geometry"], Encyclopedia of Mathematics, Springer Science+Business Media B.V. / Kluwer Academic Publishers, ISBN 978-1-55608-010-4.
 Hazewinkel, Michiel, ed. (1994) 2001. "Plane trigonometry", Encyclopedia of Mathematics, Springer Science+Business Media B.V. / Kluwer Academic Publishers, ISBN 978-1-55608-010-4,
 Kedlaya, Kiran. Geometry Unbound. Tractatio per geometriam analyticam effecta; PDF; diplomate GFDL.

Geometria elementaria
Geometria Euclideana