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Regular hexagon

A regular hexagon, {6}
Edges and vertices 6
Schläfli symbols {6}
t{3}
Coxeter–Dynkin diagrams Image:CDW ring.svgImage:CDW 6.pngImage:CDW dot.svg
Image:CDW ring.svgImage:CDW 3.pngImage:CDW ring.svg
Symmetry group Dihedral (D6)
Area
(with t=edge length)
A = \frac{3 \sqrt{3}}{2}t^2
 \simeq 2.598076211 t^2.
Internal angle
(degrees)
120°

In geometry, a hexagon is a polygon with six edges and six vertices. For edge in Graph theory, see Edge (graph theory In Geometry, an edge is a one-dimensional Line segment joining In Geometry, a vertex (plural "vertices" is a special kind of point. In Mathematics, the Schläfli symbol is a notation of the form {pqr The Symmetry group of an object ( Image, signal, etc eg in 1D 2D or 3D is the group of all Isometries under which it is In Mathematics, a dihedral group is the group of symmetries of a Regular polygon, including both rotations and reflections Area is a Quantity expressing the two- Dimensional size of a defined part of a Surface, typically a region bounded by a closed Curve. Geometry, an interior angle (or internal angle) is an Angle formed by two sides of a Simple polygon that share an endpoint namely the angle This article describes the unit of angle For other meanings see Degree. Geometry ( Greek γεωμετρία; geo = earth metria = measure is a part of Mathematics concerned with questions of size shape and relative position In Geometry a polygon (ˈpɒlɨɡɒn ˈpɒliɡɒn is traditionally a plane figure that is bounded by a closed path or circuit In Geometry, a vertex (plural "vertices" is a special kind of point. A regular hexagon has Schläfli symbol {6}. In Mathematics, the Schläfli symbol is a notation of the form {pqr

Contents

Regular hexagon

A regular hexagon is constructible with compass and straightedge. The following is a step-by-step animated method of this, given by Euclid's Elements, Book IV, Proposition 15.
A regular hexagon is constructible with compass and straightedge. Pentagon constructgif|thumb|right|Construction of a regular pentagon]] Compass-and-straightedge or ruler-and-compass construction is the construction of lengths or Angles The following is a step-by-step animated method of this, given by Euclid's Elements, Book IV, Proposition 15. Euclid ( Greek:.) fl 300 BC also known as Euclid of Alexandria, is often referred to as the Father of Geometry Euclid's Elements ( Greek:) is a mathematical and geometric Treatise consisting of 13 books written by the Greek

The internal angles of a regular hexagon (one where all sides and all angles are equal) are all 120° and the hexagon has 720 degrees. In Geometry and Trigonometry, an angle (in full plane angle) is the figure formed by two rays sharing a common Endpoint, called This article describes the unit of angle For other meanings see Degree. It has 6 rotational symmetries and 6 reflection symmetries, making up the dihedral group D6. Generally speaking an object with rotational symmetry is an object that looks the same after a certain amount of Rotation. Reflection symmetry, line symmetry, mirror symmetry, mirror-image symmetry, or bilateral symmetry is Symmetry with respect In Mathematics, a dihedral group is the group of symmetries of a Regular polygon, including both rotations and reflections The longest diagonals of a regular hexagon, connecting diametrically opposite vertices, are twice its sides in length. Like squares and equilateral triangles, regular hexagons fit together without any gaps to tile the plane (three hexagons meeting at every vertex), and so are useful for constructing tessellations. Classification A square (regular Quadrilateral) is a special case of a Rectangle as it has four right angles and equal parallel sides In Geometry, an equilateral polygon is a Polygon which has all sides of the same length A triangle is one of the basic Shapes of Geometry: a Polygon with three corners or vertices and three sides or edges which are Line A tessellation or tiling of the plane is a collection of Plane figures that fills the plane with no overlaps and no gaps The cells of a beehive honeycomb are hexagonal for this reason and because the shape makes efficient use of space and building materials. A beehive is in a general sense an enclosed structure in which some species of Honey bees (genus Apis) live and raise their young A honeycomb is a mass of Hexagonal Wax cells built by Honey bees in their nests to contain their larvae and stores of Honey and The Voronoi diagram of a regular triangular lattice is the honeycomb tessellation of hexagons. In Mathematics, a Voronoi diagram, named after Georgy Voronoi, also called a Voronoi Tessellation, a Voronoi decomposition, or

The area of a regular hexagon of side length t\,\! is given by A = \frac{3 \sqrt{3}}{2}t^2 \simeq 2.598076211 t^2.

The perimeter of a regular hexagon of side length t\,\! is, of course, 6t\,\!, its maximal diameter 2t\,\!, and its minimal diameter t\sqrt{3}\,\!.

There is no platonic solid made of regular hexagons. In Geometry, a Platonic solid is a convex Regular polyhedron. The archimedean solids with some hexagonal faces are the truncated tetrahedron, truncated octahedron, truncated icosahedron (of soccer ball and fullerene fame), truncated cuboctahedron and the truncated icosidodecahedron. In Geometry an Archimedean solid is a highly symmetric semi-regular convex Polyhedron composed of two or more types of Regular polygons meeting The truncated tetrahedron is an Archimedean solid. It has 4 regular Hexagonal faces 4 regular triangular faces 12 vertices and 18 edges The truncated octahedron is an Archimedean solid. It has 8 regular hexagonal faces 6 regular square faces 24 vertices and 36 edges The truncated icosahedron is an Archimedean solid. It comprises 12 regular pentagonal faces 20 regular hexagonal faces 60 vertices and 90 edges Association football, more commonly known as football or soccer, is a Team sport played between two teams of eleven players and is widely considered "C60" and "C-60" redirect here For other uses see C60 (disambiguation. The truncated cuboctahedron is an Archimedean solid. It has 12 regular square faces 8 regular Hexagonal faces 6 regular Octagonal faces 48 vertices The truncated icosidodecahedron is an Archimedean solid. It has 30 regular square faces 20 regular Hexagonal faces 12 regular Decagonal faces

Hexagons: natural and human-made

See also

External links

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Dictionary

hexagon

-noun

  1. (geometry) A polygon with six sides and six angles.
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