No, a concave polygon cannot be a regular polygon.
No. There can be no regular concave polygon.
Any polygon that has an angle that is > 180º is a concave polygon. A convex polygon does not. e.g. All regular polygons are convex.
A concave polygon.
A [concave] pentagon.
A nonconvex polygon is a concave polygon. All polygons with 4 or more sides can be concave. An arrowhead is an example of a concave quadrilateral. The back of an envelop (where the sides are folded and glued together) is a concave pentagon.
concave
It is a concave polygon. There are polygons of 4 or more sides that are concave.
Is a concave polygon.
No, a concave polygon cannot be a regular polygon.
No. There can be no regular concave polygon.
Any polygon that has an angle that is > 180º is a concave polygon. A convex polygon does not. e.g. All regular polygons are convex.
A concave polygon.
Yes.
A concave angle is an angle, of a polygon that caves in.
A [concave] pentagon.
No.