How many sides does a rhombus have?

A rhombus is a specific type of quadrilateral characterized by having four equal sides. This geometric shape has all the properties of a parallelogram, meaning that opposite sides are both parallel and equal in length. Furthermore, the diagonals of a rhombus bisect each other at right angles and divide the rhombus into four congruent right triangles. It is important to highlight that a rhombus can also be identified by its angles; opposite angles are equal, and consecutive angles are supplementary. Therefore, the defining characteristic of a rhombus being a four-sided figure confirms that the correct answer is indeed that a rhombus has four sides.