Elongated triangular cupola
In geometry, the elongated triangular cupola is one of the Johnson solids . As the name suggests, it can be constructed by elongating a triangular cupola by attaching a hexagonal prism to its base.
Formulae
The following formulae for volume and surface area can be used if all faces are regular, with edge length a:Dual polyhedron
The dual of the elongated triangular cupola has 15 faces: 6 isosceles triangles, 3 rhombi, and 6 quadrilaterals.| Dual elongated triangular cupola | Net of dual |