Johnson Solids (Page 1)
(box: x-ray)
(F: faces)
(slider: perspective)
(image: L=rotate R=zoom)
(M: metrics)
Please use a browser that supports "canvas"
(J18)
Elongated Triangular Cupola
Vertices:
15 (6[3] + {6 + 3}[4])
Faces:
14 ({3 + 1} equilateral triangles + {3 * 3} squares
+ 1 regular hexagon)
Edges:
27
Symmetry:
3-fold Pyramidal (C3v)
(values below based on edge length = 1)
Volume:
(5*sqrt(2)+9*sqrt(3))/6
≈3.7765875133308951476