In dictionaries:
pentagonal dodecahedron
Twelve pentagonal faces solid shape.
pentagonal prism
Solid with pentagonal bases, prism.
pentagonal pyramid
In geometry, a pentagonal pyramid is a pyramid with a pentagon base and five triangular faces, having a total of six faces.
pentagonal numbers
Pentagonal number
Numbers representing dots in pentagons.
pentagonal antiprism
In geometry, the pentagonal antiprism is the third in an infinite set of antiprisms formed by an even-numbered sequence of triangle sides closed by two polygon caps.
Pentagonal number theorem
In mathematics, Euler's pentagonal number theorem relates the product and series representations of the Euler function.
Pentagonal trapezohedron
Pentagonal trapezohedron180px|Pentagonal trapezohedronTypetrapezohedraConwaydA5Coxeter diagramFaces10 kitesEdges20Vertices12Face configurationV5.3.3.3Symmetry groupD5d, [2+,10],, order 20Rotation groupD5, [2,5]+,, order 10Dual polyhedronpentagonal antiprismPropertiesconvex, face-transitive
Pentagonal tiling
In geometry, a pentagonal tiling is a tiling of the plane where each individual piece is in the shape of a pentagon.
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