An icosahedral shape is a three-dimensional geometric figure with 20 triangular faces, 30 edges, and 12 vertices. It is one of the five Platonic solids, which are regular, convex polyhedra with identical faces. The icosahedron is known for its symmetrical properties and is often used in various fields, including mathematics, architecture, and gaming. In nature, icosahedral structures can be found in certain viruses, such as the adenovirus, which have an icosahedral symmetry that helps them efficiently package their genetic material. Additionally, the icosahedron is a popular shape in dice used in tabletop role-playing games, providing a unique way to generate random numbers.