Tag Archives: tetrahedron

Five Regular Solids, Part Three

Parts One and Two of this series of blogs established the following facts about solids that have F flat faces, E straight edges and V vertices. 1. The second fact concerns those solids that are regular. By regular we mean … Continue reading

Posted in Geometry, Mathematics and Logic | Tagged , , , , , , , | Leave a comment

Five Regular Solids, Part Two

We have counted the number of faces (F), the number of vertices (V) and the number of edges (E) on five regular solids. These solids are regular because the number of edges bounding each face (m) is the same for … Continue reading

Posted in Geometry, Mathematics and Logic | Tagged , , , , , , , | Leave a comment

Five Regular Solids, Part One

Observe the five colourful objects that head my blog. The tetrahedron Leftmost is a tetrahedron — a pyramid with a triangular base. Notice how regular and symmetric it is. It has four corners — mathematicians call them vertices (singular vertex) … Continue reading

Posted in Uncategorized | Tagged , , , , , , | Leave a comment