👉 Quadrangularly is a mathematical concept in geometry that refers to the property of an object's surface area being equal to its perimeter multiplied by 2. This means that if you have a shape with a polygonal base (like a triangle or rectangle), and you double the length of one side, you also double the total length of all sides. For example, in a square, doubling the length of each side would result in a total area of 4 times the original area.
