Dekahhedra

A dekahhedron is a polyhedron with ten faces. The term "dekahhedron" is derived from the Greek words "deka," meaning ten, and "hedra," meaning base or seat. Dekahhedra are a type of polyhedron, which is a three-dimensional shape with flat polygonal faces, straight edges, and vertices where edges meet.

Dekahhedra can have various shapes and sizes, depending on the number and arrangement of their faces. Some common types of dekahhedra include the decagonal prism, which has two decagonal bases and ten rectangular lateral faces, and the decagonal antiprism, which has two decagonal bases and ten isosceles triangular lateral faces.

Dekahhedra are studied in the field of polyhedral combinatorics, which is the branch of mathematics that deals with the enumeration, classification, and properties of polyhedra. They are also used in various applications, such as in architecture, engineering, and computer graphics, where they can be used to model complex three-dimensional shapes.

In summary, a dekahhedron is a polyhedron with ten faces. They can have various shapes and sizes, depending on the number and arrangement of their faces. Dekahhedra are studied in the field of polyhedral combinatorics and are used in various applications.