What are ten facts about triangular pyramid?

A triangular pyramid, also known as a tetrahedron, is a three-dimensional shape with four triangular faces, six edges, and four vertices. It is the simplest type of polyhedron and can be regular, with all faces being equilateral triangles, or irregular. The volume of a triangular pyramid can be calculated using the formula ( V = \frac{1}{3} \times \text{Base Area} \times \text{Height} ). Triangular pyramids have applications in various fields, including architecture, chemistry (as molecular shapes), and art.