Johnson Solids (Page 3)
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(J52)
Augmented Pentagonal Prism
Vertices:
11 ({4 + 2}[3] + {4 + 1}[4])
Faces:
10 ({2 * 2} equilateral triangles + {2 * 2} squares
+ 2 regular pentagons)
Edges:
19
Symmetry:
2-fold Pyramidal (C2v)
(values below based on edge length = 1)
Volume:
sqrt(233+90*sqrt(5)
+12*sqrt(10*(5+2*sqrt(5))))/12
≈1.9561796609844827642