That is called a regular polygon.
A Square is a polygon that is always regular.
A regular polygon.
A convex polygon.I suspect that what you mean is a convex polygon.
Yes, the angle sums will be the same regardless of whether or not it is a convex 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.
No. There can be no regular concave polygon.
Yes.
A regular polygon.
It is a regular polygon.
No, as long as the polygon is convex.
A regular polygon is a special kind of convex polygon - one in which all the sides are of the same length and all the angles are equal. Convex and concave polygons form disjoint sets: so no concave polygon can be regular.
That is called a regular polygon.
Only when the polygon is a regular convex polygon. Such as an equilateral triangle, or a square, or a regular pentagon.
A Square is a polygon that is always regular.
A regular pentagon is convex. By taking a regular pentagon and shortening or lengthening one or more sides, an infinite number of possible convex pentagons can be created. A convex polygon is defined as a polygon such that all internal angles are less than or equal to 180 degrees, and a line segment drawn between any two vertices remains inside the polygon. It is possible to have non-convex (concave) pentagons; there are infinite number possible ways to do this, too.
congruent; congruent