## Rhombus |

rhombus two rhombitype ,quadrilateral ,parallelogram kite andedges vertices 4 schläfli symbol { } + { } coxeter diagram symmetry group (ddihedral _{2}), [2], (*22), order 4area (half the product of the diagonals) dual polygon rectangle properties ,convex isotoxal in plane

, aeuclidean geometry **rhombus**(plural**rhombi**or**rhombuses**) is a whose four sides all have the same length. another name isquadrilateral **equilateral quadrilateral**, since equilateral means that all of its sides are equal in length. the rhombus is often called a**diamond**, after the suit indiamonds which resembles the projection of anplaying cards octahedral , or adiamond , though the former sometimes refers specifically to a rhombus with a 60° angle (seelozenge ), and the latter sometimes refers specifically to a rhombus with a 45° angle.polyiamond every rhombus is

(non-self-intersecting), and is a special case of asimple and aparallelogram . a rhombus with right angles is akite .square ^{[1]}^{[2]}- etymology
- characterizations
- basic properties
- diagonals
- inradius
- area
- dual properties
- cartesian equation
- other properties
- see also
- references
- external links

Rhombus | |
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Two rhombi | |

Type | |

4 | |

{ } + { } | |

_{2}), [2], (*22), order 4 | |

(half the product of the diagonals) | |

Properties |

In plane **rhombus** (plural **rhombi** or **rhombuses**) is a **equilateral quadrilateral**, since equilateral means that all of its sides are equal in length. The rhombus is often called a **diamond**, after the ** lozenge**, though the former sometimes refers specifically to a rhombus with a 60° angle (see

Every rhombus is ^{[1]}^{[2]}