No. There can be no regular concave polygon.
A square is a regular four-sided polygon.
Any polygon whose sides are equal in length, such as a square, is a regular polygon.
A regular polygon is a polygon in which all sides and angles are congruent, so a rectangle is a regular polygon when it is a square: when all sides are equal.
Square, or a rectangle. * * * * * Since it is a REGULAR polygon, it cannot be a rectangle. So the only answer is a square.
Yes every square is a regular polygon.
A Square is a polygon that is always regular.
In general, a diamond shape is neither a square nor a regular polygon. Only in an extreme form is it a square and therefore a regular polygon.
No. There can be no regular concave polygon.
it seems to me that the only polygon of your description is a square
A square is a regular four-sided polygon.
Any polygon whose sides are equal in length, such as a square, is a regular polygon.
A regular polygon is a polygon in which all sides and angles are congruent, so a rectangle is a regular polygon when it is a square: when all sides are equal.
Square, or a rectangle. * * * * * Since it is a REGULAR polygon, it cannot be a rectangle. So the only answer is a square.
square
yes because it is a square
A square