Johnson Solids (Page 1)
(box: x-ray)
(F: faces)
(slider: perspective)
(image: L=rotate R=zoom)
(M: metrics)
(J8)
Elongated Square Pyramid
Vertices:
9 (4[3] + {4 + 1}[4])
Faces:
9 (4 equilateral triangles + {4 + 1} squares)
Edges:
16
Symmetry:
4-fold Pyramidal (C4v)
(values below based on edge length = 1)
Volume:
(6+sqrt(2))/6
≈1.23570226039551584147