rectangle and concave
Irregular means Not regular. FOR EXAMPLE: A regular polygon is a shape with all equal sides, but an irregular polygon is not equilateral.
Any polygon can have at least one right angled - for example a right angled triangle. An example of an irregular polygon with only right angles is a rectangle.
Polygons can either be regular or irregular. A regular polygon is for example a octagon which has sides and angles that are all the same. Irregular they are not all the same.
For example, you can divide the polygon into triangles, and calculate the area of each triangle.
"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.
An irregular polygon is a polygon in which all sides and angles are not equel in length. That means an example of one would be a polygon with five sides as usual but with some sides longer or shorter than others.
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! :)
A square cannot be irregular though it is a polygon.
It is not a polygon at all, it is a polyhedron. It is irregular.