The Elongated Square Pyramid
The elongated square pyramid is the 8th Johnson solid (J8). It has 9 vertices, 16 edges, and 9 faces (4 equilateral triangles and 5 squares).
Attaching another square pyramid to the opposite end of the cube produces the elongated square bipyramid.
Here are some views of the elongated square pyramid from various angles:
Diagonal side view.
The Cartesian coordinates of the elongated square pyramid with edge length 2 are:
- (0, 0, 1+√2)
- (±1, ±1, ±1)