Euxolus rhombeus

Description

In plane Euclidean geometry, a rhombus plural rhombi or rhombuses is a simple non-self-intersecting quadrilateral whose four sides all have the same length. Another name is equilateral quadrilateral, since equilateral means that all of its sides are equal in length. The rhombus is often called a diamond, after the diamonds suit in playing cards which resembles the projection of an octahedral diamond, or a lozenge, though the former sometimes refers specifically to a rhombus with a 60° angle see Polyiamond, and the latter sometimes refers specifically to a rhombus with a 45° angle. Every rhombus is a parallelogram and a kite. A rhombus with right angles is a square.