# Rhombus

From Encyclopedia of Mathematics

A planar quadrangle with equal sides. A rhombus can be considered as a special case of a parallelogram with adjacent sides equal or with diagonals perpendicular to each other or with a diagonal dividing the angle in two. A rhombus with right angles is a square.

#### Comments

#### References

[a1] | K. Rektorys (ed.) , Applicable mathematics , Iliffe (1969) pp. 135 |

**How to Cite This Entry:**

Rhombus. BSE-3 (originator),

*Encyclopedia of Mathematics.*URL: http://encyclopediaofmath.org/index.php?title=Rhombus&oldid=14428

This text originally appeared in Encyclopedia of Mathematics - ISBN 1402006098