One may ask the question "where do regular and irregular shapes differ?". Well, a regular shape is such a shape that has equal angles and equal sides. For an irregular shape, this is not true.

While there already are formulas used to calculate the areas of regular shapes, to calculate the areas of irregular shapes is not that simple.

What is an irregular shape? It's a polygon with five or more sides of different lengths.

To evaluate the area of an irregular shape, you need to first decompose it into triangles and squares. Then you find the area of each sub-shape (triangles, squares) and add them together. The result will make the area of the irregular shape.

For more information, the formula and other conversions you can use our free Area Calculator.