In geometry, the elongated square pyramid is one of the Johnson solids (J₈). As the name suggests, it can be constructed by elongating a square pyramid (J₁) by attaching a cube to its square base. Like any elongated pyramid, it is self-dual.

The 92 Johnson solids were named and described by Norman Johnson in 1966.

External link

• Johnson Solid -- from MathWorld

Johnson solids | Self-dual polyhedra

Pyramide carrée allongée