Quasicrystals can even have regular pentagons as faces.

How to calculate various dimensions of regular pentagons.

This detailed procedure involving Carlyle circles for the construction of regular pentagons is given below.

To create a solid exhibiting fivefold symmetry is equivalent to using five-sided tiles - regular pentagons - to cover a floor.

Unlike rectangles, triangles and hexagons, regular pentagons cannot be fitted together to cover a floor without leaving gaps.

J: Bilunabirotunda (8 equilateral triangles, 2 squares, 4 regular pentagons)

A pentaflake, or sierpinski pentagon, is formed by successive flakes of six regular pentagons.

This is due to the impossibility of tiling a plane with regular pentagons, simply because the pentagon vertex angle does not divide .

After her talk, Stein asked about regular pentagons.

Two complementary regular pentagons can be superimposed to form a decagon.