The geometry of the three-dimensional world in which we live must be one of the most interesting and useful topics to study. In this chapter we will only scratch the foreshore of possibilities. The undiscovered hinterland teems with unknown polyhedra, strange non-measurable sets, topological knots and links etc. We will only consider the simplest objects; points, lines, planes and a few polyhedra including the platonic solids.
KeywordsEquilateral Triangle Stereographic Projection Orthogonal Transformation Isosceles Triangle Regular Polyhedron
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