Table of polyhedron dihedral angles

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The dihedral angles for the edge-transitive polyhedra are:

Picture Name Schläfli
symbol
Vertex/Face
configuration
exact dihedral angle
(radians)
dihedral angle
– exact in bold,
else approximate
(degrees)
Platonic solids (regular convex)
File:Tetrahedron.png Tetrahedron {3,3} (3.3.3) arccos (Template:Sfrac) 70.529°
File:Hexahedron.png Hexahedron or Cube {4,3} (4.4.4) arccos (0) = Template:Sfrac 90°
File:Octahedron.png Octahedron {3,4} (3.3.3.3) arccos (-Template:Sfrac) 109.471°
File:Dodecahedron.png Dodecahedron {5,3} (5.5.5) arccos (-Template:Sfrac) 116.565°
File:Icosahedron.png Icosahedron {3,5} (3.3.3.3.3) arccos (-Template:Sfrac) 138.190°
Kepler–Poinsot solids (regular nonconvex)
File:Small stellated dodecahedron.png Small stellated dodecahedron Template:Mset (Template:Sfrac.Template:Sfrac.Template:Sfrac.Template:Sfrac.Template:Sfrac) arccos (-Template:Sfrac) 116.565°
File:Great dodecahedron.png Great dodecahedron Template:Mset Template:Sfrac arccos (Template:Sfrac) 63.435°
Error creating thumbnail: Great stellated dodecahedron {Template:Sfrac,3} (Template:Sfrac.Template:Sfrac.Template:Sfrac) arccos (Template:Sfrac) 63.435°
File:Great icosahedron.png Great icosahedron Template:Mset Template:Sfrac arccos (Template:Sfrac) 41.810°
Quasiregular polyhedra (Rectified regular)
Error creating thumbnail: Tetratetrahedron r{3,3} (3.3.3.3) arccos (-Template:Sfrac) 109.471°
File:Cuboctahedron.png Cuboctahedron r{3,4} (3.4.3.4) arccos (-Template:Sfrac) 125.264°
File:Icosidodecahedron.png Icosidodecahedron r{3,5} (3.5.3.5) arccos(11575+305) 142.623°
File:Dodecadodecahedron.png Dodecadodecahedron r{Template:Sfrac,5} (5.Template:Sfrac.5.Template:Sfrac) arccos (-Template:Sfrac) 116.565°
File:Great icosidodecahedron.png Great icosidodecahedron r{Template:Sfrac,3} (3.Template:Sfrac.3.Template:Sfrac) arccos(11575+305) 37.377°
Ditrigonal polyhedra
File:Small ditrigonal icosidodecahedron.png Small ditrigonal icosidodecahedron a{5,3} (3.Template:Sfrac.3.Template:Sfrac.3.Template:Sfrac)
File:Ditrigonal dodecadodecahedron.png Ditrigonal dodecadodecahedron bTemplate:Mset (5.Template:Sfrac.5.Template:Sfrac.5.Template:Sfrac)
Error creating thumbnail: Great ditrigonal icosidodecahedron cTemplate:Mset Template:Sfrac
Hemipolyhedra
File:Tetrahemihexahedron.png Tetrahemihexahedron o{3,3} (3.4.Template:Sfrac.4) arccos (Template:Sfrac) 54.736°
File:Cubohemioctahedron.png Cubohemioctahedron o{3,4} (4.6.Template:Sfrac.6) arccos (Template:Sfrac) 54.736°
File:Octahemioctahedron.png Octahemioctahedron o{4,3} (3.6.Template:Sfrac.6) arccos (Template:Sfrac) 70.529°
File:Small dodecahemidodecahedron.png Small dodecahemidodecahedron o{3,5} (5.10.Template:Sfrac.10) arccos(11519565) 26.058°
File:Small icosihemidodecahedron.png Small icosihemidodecahedron o{5,3} (3.10.Template:Sfrac.10) arccos (-Template:Sfrac) 116.56°
File:Great dodecahemicosahedron.png Great dodecahemicosahedron o{Template:Sfrac,5} (5.6.Template:Sfrac.6)
Error creating thumbnail: Small dodecahemicosahedron oTemplate:Mset (Template:Sfrac.6.Template:Sfrac.6)
Error creating thumbnail: Great icosihemidodecahedron oTemplate:Mset (3.Template:Sfrac.Template:Sfrac.Template:Sfrac)
File:Great dodecahemidodecahedron.png Great dodecahemidodecahedron oTemplate:Mset (Template:Sfrac.Template:Sfrac.Template:Sfrac.Template:Sfrac)
Quasiregular dual solids
File:Hexahedron.png Rhombic hexahedron
(Dual of tetratetrahedron)
V(3.3.3.3) arccos (0) = Template:Sfrac 90°
File:Rhombic dodecahedron.png Rhombic dodecahedron
(Dual of cuboctahedron)
V(3.4.3.4) arccos (-Template:Sfrac) = Template:Sfrac 120°
File:Rhombic triacontahedron.png Rhombic triacontahedron
(Dual of icosidodecahedron)
V(3.5.3.5) arccos (-Template:Sfrac) = Template:Sfrac 144°
Error creating thumbnail: Medial rhombic triacontahedron
(Dual of dodecadodecahedron)
V(5.Template:Sfrac.5.Template:Sfrac) arccos (-Template:Sfrac) = Template:Sfrac 120°
File:DU54 great rhombic triacontahedron.png Great rhombic triacontahedron
(Dual of great icosidodecahedron)
V(3.Template:Sfrac.3.Template:Sfrac) arccos (Template:Sfrac) = Template:Sfrac 72°
Duals of the ditrigonal polyhedra
File:DU30 small triambic icosahedron.png Small triambic icosahedron
(Dual of small ditrigonal icosidodecahedron)
V(3.Template:Sfrac.3.Template:Sfrac.3.Template:Sfrac)
File:DU41 medial triambic icosahedron.png Medial triambic icosahedron
(Dual of ditrigonal dodecadodecahedron)
V(5.Template:Sfrac.5.Template:Sfrac.5.Template:Sfrac)
File:DU47 great triambic icosahedron.png Great triambic icosahedron
(Dual of great ditrigonal icosidodecahedron)
VTemplate:Sfrac
Duals of the hemipolyhedra
Error creating thumbnail: Tetrahemihexacron
(Dual of tetrahemihexahedron)
V(3.4.Template:Sfrac.4) Template:PiTemplate:Sfrac 90°
File:Hexahemioctacron.png Hexahemioctacron
(Dual of cubohemioctahedron)
V(4.6.Template:Sfrac.6) Template:PiTemplate:Sfrac 120°
File:Hexahemioctacron.png Octahemioctacron
(Dual of octahemioctahedron)
V(3.6.Template:Sfrac.6) Template:PiTemplate:Sfrac 120°
Error creating thumbnail: Small dodecahemidodecacron
(Dual of small dodecahemidodecacron)
V(5.10.Template:Sfrac.10) Template:PiTemplate:Sfrac 144°
Error creating thumbnail: Small icosihemidodecacron
(Dual of small icosihemidodecacron)
V(3.10.Template:Sfrac.10) Template:PiTemplate:Sfrac 144°
File:Small dodecahemicosacron.png Great dodecahemicosacron
(Dual of great dodecahemicosahedron)
V(5.6.Template:Sfrac.6) Template:PiTemplate:Sfrac 120°
File:Small dodecahemicosacron.png Small dodecahemicosacron
(Dual of small dodecahemicosahedron)
V(Template:Sfrac.6.Template:Sfrac.6) Template:PiTemplate:Sfrac 120°
File:Great dodecahemidodecacron.png Great icosihemidodecacron
(Dual of great icosihemidodecacron)
V(3.Template:Sfrac.Template:Sfrac.Template:Sfrac) Template:PiTemplate:Sfrac 72°
File:Great dodecahemidodecacron.png Great dodecahemidodecacron
(Dual of great dodecahemidodecacron)
V(Template:Sfrac.Template:Sfrac.Template:Sfrac.Template:Sfrac) Template:PiTemplate:Sfrac 72°

References