Is a quadrilateral always a square?

Not at all! A quadrilateral is simply any four-sided polygon, which means it comes in various shapes like rectangles, trapezoids, and rhombuses. A square, however, is a specific type of quadrilateral where all sides are equal in length, and all angles are right angles. So, every square is a quadrilateral, but not every quadrilateral is a square—consider it a special member of a larger family! Think of quadrilaterals like a big-box store filled with furniture: while each section has its own unique items (trapezoids, parallelograms, rhombuses), a square is like that perfect comfy sofa in one corner—definitely four-sided and fabulous, but not the only option in the store!