Pentagonal

It can be decomposed into a gyroelongated pentagonal pyramid and a pentagonal pyramid or into a pentagonal antiprism and two equal pentagonal pyramids.

A regular icosahedron is a gyroelongated pentagonal bipyramid and a biaugmented pentagonal antiprism in any of six orientations.

Overhand knot in paper-folding Pentagonal overhand knot tied in flat material If a flat ribbon or strip is tightly folded into a flattened overhand knot, it assumes a regular pentagonal shape.

Cmain tends to avoid having double bonds in the pentagonal rings, which makes electron delocalization poor, and results in Cmain not being " superaromatic ".

For example, the small stellated dodecahedron has 12 pentagram faces with the central pentagonal part hidden inside the solid.

Halides Protactinium(V) fluoride forms white crystals where protactinium ions are arranged in pentagonal bipyramids and coordinated by 7 other ions.

In mathematical terms, the structure of a fullerene is a trivalent convex polyhedron with pentagonal and hexagonal faces.

In this nomenclature, an octahedron would be a square bipyramid, a cuboctahedron would be a triangular gyrobicupola, and an icosidodecahedron would be a pentagonal gyrobirotunda.

It has 12 regular pentagonal faces, 20 regular hexagonal faces, 60 vertices and 90 edges.

One of the forms, called the pyritohedron (named for the group of minerals of which it is typical) has twelve pentagonal faces, arranged in the same pattern as the faces of the regular dodecahedron.

PaOBr 3 has a monoclinic structure composed of double-chain units where protactinium has coordination 7 and is arranged into pentagonal bipyramids.

The colors can be seen on the back of the cards, in a pentagonal design, called the "Color Wheel" or "Color Pie".

The fortress, built in 1361 atop the highest point of the town, was designed with a pentagonal layout by the Sienese architects Mino Foresi and Domenico di Feo.

The icosidodecahedron can therefore be called a pentagonal gyrobirotunda with the gyration between top and bottom halves.

There are pentagonal Toran above each of the four sides, with statues engraved on them.

The small cage again has the shape of a pentagonal dodecahedron (5 12 ), but the large one is a hexadecahedron (5 12 6 4 ).

This volume thus takes the form of a vertical right pentagonal prism located above home plate.