There is no general formula for all irregular polygons.
"Irregular polygon" seems just fine for me."Irregular polygon" seems just fine for me."Irregular polygon" seems just fine for me."Irregular polygon" seems just fine for me.
The definition of a irregular polygon is any polygon that is not a regular polygon.
an irregular polygon is a polygon that is the opposite of a regular polygon in a regular polygon the sides are the same and the angles are the same and irregular is the opposite.
A irregular nonagon is a polygon that is not a regular polygon.
If a polygon's lengths and angles are all equal it isn't an irregular polygon it's a regular polygon! :)
For example, you can divide the polygon into triangles, and calculate the area of each triangle.
It is not a polygon at all, it is a polyhedron. It is irregular.
A square cannot be irregular though it is a polygon.
Measure them with a protractor
A 4 sided parallelogram is an irregular polygon
It is an irregular polygon.