plane geometry
Noun
Meaning
the geometry of 2-dimensional figures
Source: WordNetSynonyms
Hypernyms
Examples
Affine transformation in plane geometry A simple affine transformation on the real plane Effect of applying various 2D affine transformation matrices on a unit square.
Euclidean geometry Euclid's construction for proof of the triangle inequality for plane geometry.
The axioms unify both the plane geometry and solid geometry of Euclid in a single system.
There are 13 total books in the Elements: Books I–IV and VI discuss plane geometry.