Compound of twelve pentagrammic prisms
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The compound of twelve pentagrammic prisms is a special geometric shape that belongs to a group called uniform polyhedron compounds. It has twelve pentagrammic prisms arranged in a very symmetric pattern. These prisms are lined up in pairs along the axes of fivefold rotational symmetry of a dodecahedron. This means they fit together in a balanced way, like the structure of this famous polyhedron.
This compound is made by combining two mirror-image compounds of six pentagrammic prisms. When these two mirror-image compounds are joined together, their points line up perfectly. This creates a design where two pentagrammic prisms meet at each point, forming a complex and balanced shape.
These geometric compounds are beautiful to see and help mathematicians and students learn about symmetry and how shapes relate in three dimensions. Studying these shapes connects to fields like crystallography and art, showing how natural patterns and human designs often use symmetry.
| Compound of twelve pentagrammic prisms | |
|---|---|
| Type | Uniform compound |
| Index | UC37 |
| Polyhedra | 12 pentagrammic prisms |
| Faces | 24 pentagrams, 60 squares |
| Edges | 180 |
| Vertices | 60 |
| Symmetry group | icosahedral (Ih) |
| Subgroup restricting to one constituent | 5-fold dihedral (D5) |
Related polyhedra
This special shape, called a compound of twelve pentagrammic prisms, shares its corner points with four other uniform polyhedra. The points are arranged in an organized way, showing how different shapes can fit together in geometry.
The way the corners line up helps us see the relationships between these shapes and understand their symmetry and structure.
Rhombicosidodecahedron | Small dodecicosidodecahedron | Small rhombidodecahedron |
Small stellated truncated dodecahedron | Compound of six pentagrammic prisms | Compound of twelve pentagrammic prisms |
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