The area is calculated with the formula: (n × s² × cot(π/n)) / 4, where 'n' is the number of sides and 's' is the side length.

'cot' stands for the cotangent trigonometric function. We use it to calculate the polygon's apothem.

To find the area of an irregular polygon, we usually divide the shape into simpler, recognizable triangles or rectangles, calculate their individual areas, and add them up.