14 relations: Archimedean solid, Bilunabirotunda, Convex set, Geometry, Golden ratio, Hexagon, Icosidodecahedron, Johnson solid, Pentagon, Platonic solid, Rotational symmetry, Square, Square pyramid, Triangle.
Archimedean solid
In geometry, an Archimedean solid is one of the 13 solids first enumerated by Archimedes.
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Bilunabirotunda
In geometry, the bilunabirotunda is one of the Johnson solids (J91).
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Convex set
In convex geometry, a convex set is a subset of an affine space that is closed under convex combinations.
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Geometry
Geometry (from the γεωμετρία; geo- "earth", -metron "measurement") is a branch of mathematics concerned with questions of shape, size, relative position of figures, and the properties of space.
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Golden ratio
In mathematics, two quantities are in the golden ratio if their ratio is the same as the ratio of their sum to the larger of the two quantities.
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Hexagon
In geometry, a hexagon (from Greek ἕξ hex, "six" and γωνία, gonía, "corner, angle") is a six-sided polygon or 6-gon.
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Icosidodecahedron
In geometry, an icosidodecahedron is a polyhedron with twenty (icosi) triangular faces and twelve (dodeca) pentagonal faces.
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Johnson solid
In geometry, a Johnson solid is a strictly convex polyhedron, which is not uniform (i.e., not a Platonic solid, Archimedean solid, prism, or antiprism), and each face of which is a regular polygon.
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Pentagon
In geometry, a pentagon (from the Greek πέντε pente and γωνία gonia, meaning five and angle) is any five-sided polygon or 5-gon.
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Platonic solid
In three-dimensional space, a Platonic solid is a regular, convex polyhedron.
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Rotational symmetry
Rotational symmetry, also known as radial symmetry in biology, is the property a shape has when it looks the same after some rotation by a partial turn.
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Square
In geometry, a square is a regular quadrilateral, which means that it has four equal sides and four equal angles (90-degree angles, or (100-gradian angles or right angles). It can also be defined as a rectangle in which two adjacent sides have equal length. A square with vertices ABCD would be denoted.
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Square pyramid
In geometry, a square pyramid is a pyramid having a square base.
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Triangle
A triangle is a polygon with three edges and three vertices.
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References
[1] https://en.wikipedia.org/wiki/Triangular_hebesphenorotunda