What is a Tetrahedron?
A tetrahedron is a type of polyhedron which has four faces, making it the smallest possible type of polyhedron. This geometric figure is the basis for a wide variety of geometry problems, and examples of tetrahedra can be seen in architecture, the arts, and even daily life. In fact, chances are very good that there’s a tetrahedron in your vicinity. To understand the tetrahedron, it is unfortunately necessary to discuss a few key terms in geometry. A polygon is a flat or “planar” shape created with a series of connecting line segments: a triangle, for example, is a polygon. A polyhedron is a three-dimensional object composed of multiple polygons which meet to form straight edges. A well-known example of a polyhedron is a cube, a six-sided polyhedron. If the edges are curved, as in the case of a cylinder, the shape is no longer a polyhedron. In the case of a tetrahedron, the polygons are all triangles by default, because in order to create a three-dimensional object with four polygons, e
