Quadrangle

A quadrilateral is a four-sided polygon, meaning it has four straight edges and four angles. The sides can be of any length, and the angles can vary, making quadrilaterals a diverse group of shapes. Examples include rectangles, squares, trapezoids, and rhombuses. They are commonly found in architecture, art, and everyday objects. Quadrilaterals are mainly distinguished by their side lengths and angles, and they follow specific rules—for instance, the sum of their interior angles always equals 360 degrees.