At least one, usually two.
Chat with our AI personalities
a polygon has all closed sides and no curved sides
a trapezoid has no curved faces it is all straight faces
No, because all quadrilaterals have 4 straight sides.
no, because the main charcteristic of a square is that all the sides are equal. If there was a curved side, it would be a polygon, not a square.
A curved side, a non-coplanar side (ie all sides must be in the same plane), less than 3 sides.