Changes

* [[Line]]s, an infinitely long set of points expanding in two opposite directions.

* [[Line]]s, an infinitely long set of points expanding in two opposite directions.

* [[Plane]]s, an infinitely wide set of lines, stretching out in four directions.

* [[Plane]]s, an infinitely wide set of lines, stretching out in four directions.

* [[Space]], all of the 3-dimensional space that points, lines, and planes exist ons.

* [[Space]], all of the 3-dimensional space that points, lines, and planes exist on.

Euclidean geometry is named after [[Euclid]] who wrote ''Euclid's Elements'', an important early book containing [[postulate]]s and [[theorem]]s on Euclidean geometry. The opposite of Euclidean geometry is [[Non-Euclidean geometry]].

Euclidean geometry is named after [[Euclid]] who wrote ''Euclid's Elements'', an important early book containing [[postulate]]s and [[theorem]]s on Euclidean geometry. The opposite of Euclidean geometry is [[Non-Euclidean geometry]].