Why is a rhombus a rhombus?

A rhombus is defined as a quadrilateral with all four sides of equal length. This characteristic, combined with the fact that opposite angles are equal and adjacent angles are supplementary, sets it apart from other quadrilaterals. Additionally, the diagonals of a rhombus bisect each other at right angles, further reinforcing its unique geometry. Thus, a rhombus is identified by its equal sides and specific angle properties.