Euler characteristics of a Polyhedron
Polygon consists of Faces/Polygons, Edges, Verdices (Corners)
Euler Definition:
Given Polyhedron P, its Euler characteristic, denoted e(P), is defined as follows:
e(P) = #f - #e + #v
The Platonic Solids are the only REGULAR Polyhedra
Euler characteristics of Tetrahedron:
e(T) = ?
#f = 4
#e = 6
# v= 4
e(T) = 4 -6 +4 =2