fraction.
elliptic - a kind of non-Euclidean geometry.
There are no geometry terms that start with the letter J. Geometry deals with the spatial relationships of objects.
bisector
Geometry
base
mk
Figure, face, or fundamental region. Figure: a set of points Face: a polygonal region of a surface Fundamental region: a region used in a tesselation
width
Angle Apothem AxesAxiom
I think vertex...
geometry
nonagon