Johnson Solids (Page 2)
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(J23)
Gyroelongated Square Cupola
Vertices:
20 ({4 * 3}[4] + 8[5])
Faces:
26 ({8 + 4 * 3} equilateral triangles + {4 + 1} squares
+ 1 regular octagon)
Edges:
44
Symmetry:
4-fold Pyramidal (C4v)
(values below based on edge length = 1)
Volume:
(3+2*sqrt(2)+2*sqrt(2*(2+sqrt(2)
+sqrt(146+103*sqrt(2)))))/3
≈6.2107657920392000367