Both, I think
Either. A 5-sided polygon can be either regular or irregular. It is only regular if all sides and all angles are equal. Otherwise it is irregular. The number of sides is insufficient to determine whether a polygon is regular or irregular.
It will be either isosceles or equilateral. It is equilateral if all of the angles are congruent.
always.
Every hexagon has six sides. That's what the "hex" in hexagon means. Every polygon comes in two flavors and the hexagon can be either one of them ... 'regular' or 'irregular'. If the hexagon is a regular one, then all six of its sides are congruent. If the hexagon is an irregular one, then 2, 3, 4, 5, or none of its sides may be congruent.
This is either a square or a rectangle.
No. In a regular polygon, all sides are congruent, and all angles are congruent. A parallelogram doesn't satisfy either of these conditions.No. In a regular polygon, all sides are congruent, and all angles are congruent. A parallelogram doesn't satisfy either of these conditions.No. In a regular polygon, all sides are congruent, and all angles are congruent. A parallelogram doesn't satisfy either of these conditions.No. In a regular polygon, all sides are congruent, and all angles are congruent. A parallelogram doesn't satisfy either of these conditions.
Polygons can either be regular or irregular. A regular polygon is for example a octagon which has sides and angles that are all the same. Irregular they are not all the same.
Either. A 5-sided polygon can be either regular or irregular. It is only regular if all sides and all angles are equal. Otherwise it is irregular. The number of sides is insufficient to determine whether a polygon is regular or irregular.
No, because there is no such thing as a "rhomus". Furthermore, a rhombus is not a regular polygon either. A regular polygon must have all its sides of equal length and all its angles of equal measure. A rhombus meets the first requirement but not the second and so is not regular.
It will be either isosceles or equilateral. It is equilateral if all of the angles are congruent.
Either a square or a rectangle.
Either a square or a rhombus.
Congruent.
It doesn't imply they are congruent. However it doesn't mean they are not either. Not enough information has been given to establish their congruence.
No, it means they have either 2 sides and 1 angle congruent, 2 angles congruent, 2 angles and a side congruent, or 3 sides congruent.
always
Always : )