Heptagrammic cupola

Heptagrammic cupola
Type Star-cupola
Faces 8 triangles
8 squares
1 {7/3}
1 {14/3}
Edges 35
Vertices 21
Schläfli symbol {7/3} || t{7/3}
Symmetry group C7v, [7], (*77)
Rotation group C7, [7]+, (77)
Dual polyhedron -

In geometry, the heptagrammic cupola is a star-cupola made from an heptagram, {7/3} and parallel tetradecagram, {14/3}, connected by 7 mutually intersecting equilateral triangles and squares.

Related polyhedra

Family of star-cupolae
n / d 4 5 7 8
3
{4/3}

{5/3}

{7/3}

{8/3}
5
{7/5}

{8/5}

Crossed heptagrammic cupola

Crossed heptagrammic cupola
Type Star-cupola
Faces 8 triangles
8 squares
1 {7/5}
1 {14/5}
Edges 35
Vertices 21
Schläfli symbol {7/5} || t{7/5}
Symmetry group C7v, [7], (*77)
Rotation group C7, [7]+, (77)
Dual polyhedron -

The crossed heptagrammic cupola is a star-cupola made from an heptagram, {7/5} and parallel tetradecagram, {14/5}, connected by 7 mutually intersecting equilateral triangles and squares.

References

External links

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