Truncated square antiprism

The truncated square antiprism one in an infinite series of truncated antiprisms, constructed as a truncated square antiprism. It has 18 faces, 2 octagons, 8 hexagons, and 8 squares.

Truncated square antiprism
TypeTruncated antiprism
Schläfli symbolts{2,8}
tsr{4,2} or
Conway notationtA4
Faces18: 2 {8}, 8 {6}, 8 {4}
Edges48
Vertices32
Symmetry groupD4d, [2+,8], (2*4), order 16
Rotation groupD4, [2,4]+, (224), order 8
Dual polyhedron
Propertiesconvex, zonohedron

Gyroelongated triamond square bicupola

If the hexagons are folded, it can be constructed by regular polygons. Or each folded hexagon can be replaced by two triamonds, adding 8 edges (56), and 4 faces (32). This form is called a gyroelongated triamond square bicupola.[1]

Truncated antiprisms
Symmetry D2d, [2+,4], (2*2) D3d, [2+,6], (2*3) D4d, [2+,8], (2*4) D5d, [2+,10], (2*5)
Antiprisms
s{2,4}

(v:4; e:8; f:6)

s{2,6}

(v:6; e:12; f:8)

s{2,8}

(v:8; e:16; f:10)

s{2,10}

(v:10; e:20; f:12)
Truncated
antiprisms

ts{2,4}
(v:16;e:24;f:10)

ts{2,6}
(v:24; e:36; f:14)

ts{2,8}
(v:32; e:48; f:18)

ts{2,10}
(v:40; e:60; f:22)

Snub square antiprism

Although it can't be made by all regular planar faces, its alternation is the Johnson solid, the snub square antiprism.

References


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