There is no general formula for all irregular polygons.
There is no maximum number for a an irregular concave polygon. If it must be convex, then there is a maximum of 3.
Yes it is. All its angles are not equal and so it cannot be described as regular.
That depends on whether or not if it's a regular polygon or an irregular polygon but in general all exterior angles for any polygon add up to 360 degrees.
There are many shapes: Any regular polygon. An irregular polygon with an even number of sides in which the opposite sides and angles are equal. An irregular polygon with 3n sides where every third side is equal and every third angle is equal. and so on. A circle, ellipse, disc, oval
If a polygon's lengths and angles are all equal it isn't an irregular polygon it's a regular polygon! :)
Three or more.
An irregular polygon
It is an irregular polygon.
Any irregular polygon does not have equal sides and equal interior angles
An irregular polygon is a polygon in which all of the sides and angles are not the same.
It would be an irregular polygon that has not congruent sides and angles
An irregular *polygon* is one where the angles are all different
It is an irregular polygon
an irregular polygon
It is called an irregular polygon. However, an irregular polygon can have congruent sides if all angles are not equal.