A quadrilateral is a polygon that has four sides. The term ‘quadrilateral’ is derived from the Latin words ‘quadri,’ meaning four, and ‘latus,’ meaning side. Therefore, by definition, a quadrilateral always has four sides.
Quadrilaterals come in various shapes and sizes, including squares, rectangles, parallelograms, trapezoids, and rhombuses. Despite their differences in angles and side lengths, all these shapes share the common characteristic of having four sides.
In summary, a quadrilateral has four sides, and this is a fundamental property that defines it.