What is a tetra shape?

A tetra shape, or tetrahedron, is a three-dimensional geometric figure that consists of four triangular faces, six edges, and four vertices. It is the simplest type of polyhedron and can be regular, where all faces are equilateral triangles, or irregular. Tetrahedra are significant in various fields, including chemistry, where they can represent the molecular geometry of certain compounds, such as methane (CH₄).