Simplest Canonical Polyhedra of Each Symmetry Type

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Simplest Canonical Polyhedron with C5v Symmetry
(Pentagonal Pyramid)
Vertices:  6  (5[3] + 1[5])
Faces:6  (5 isosceles triangles + 1 regular pentagon)
Edges:10  (5 short + 5 long)
Symmetry:  5-fold Pyramidal  (C5v)
Dual Solid:  Pentagonal Pyramid (itself)
(values below based on edge-scribed radius = 1)
Short Edge (5):  2*sqrt(2*(sqrt(5)−2))    ≈1.3742429988900498566
Long Edge (5):  2*sqrt(1+sqrt(5))    ≈3.59781487989573454452
Edge-scribed Radius:  1
Volume:4*(5−sqrt(5))/3    ≈3.685242696666947071454