Faces in mathematical terms are the surfaces of objects on each side. This includes things like the sides of a triangle or the outer surface of rectangles and squares.
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It depends on the exact mathematical definitions of the terms which are generally used in the context of polyhedra. However, in terms of the common usages of the terms, a sphere has one surface, and no vertices or edges.
In mathematical terms it's called a rhombus.
dodecagon- 12 sides
point
It is a subset of the space that, in mathematical terms, you are working in.