What do you mean by "dent"?
A curve? A polygon cannot have a curve anywhere along its edge. A polygon is defined to have straight edges only. Other shapes besides polygons exist, such as circles and ellipses and the like, but they are not polygons.
If you mean that a part of the shape comes inward toward the body/center of the polygon... but the edges are still straight... then the only shapes that can do this have at least five sides. And polygons that do this are called "concave polygons". Look up what a concave polygon is to verify this is what youre talking about.
concave
ConvexA convex polygon does not have a "dent" in it.
It is a shape that don't have a dent in it ~ And that it can be any shape but the ones with dents.
A regular polygon has all its angles equal AND all its sides equal. A nonregular polygon has at least one angle or one side that is different from the others.
irregular
At least one.
concave
A concave polygon.
Concave.
ConvexA convex polygon does not have a "dent" in it.
It is a shape that don't have a dent in it ~ And that it can be any shape but the ones with dents.
A regular polygon has all its angles equal AND all its sides equal. A nonregular polygon has at least one angle or one side that is different from the others.
irregular
No, they do not.
i dont think any1 knows * * * * * A concave polygon has at least one reflex angle. Equivalently, in a convex polygon, a line joining ANY two points in (or on) the polygon lie wholly within (or on) the polygon. In a concave polygon there are at least two points for which the line joining them does not lie wholly inside (or on) the polygon.
A polygon that has one or more interior angles greater than 180° is called concave. So it has at least one, but may have more.
Irregular polygons have three or more straight sides forming the boundaries of the polygon. At least one of the sides or one of the angles is different from the others.