A regular square or a rhombus if you mean all four sides are equal in length, a parallelogram if you mean the opposite sides are equal.
A parallelogram is a four sided shape where opposite sides are parallel and equal lengths. If you mean that ALL sides are equal lengths, you are looking for a rhombus.
It is not clear what you mean by "has 4 right sides opposite sides equal". If you delete the phrase "4 right sides", the answer is a rhombus.
An equilateral shape would have equal and opposite sides.
Opposite sides are parallel; opposite sides are equal; opposite angles are equal.
A regular square or a rhombus if you mean all four sides are equal in length, a parallelogram if you mean the opposite sides are equal.
A parallelogram is a four sided shape where opposite sides are parallel and equal lengths. If you mean that ALL sides are equal lengths, you are looking for a rhombus.
It is not clear what you mean by "has 4 right sides opposite sides equal". If you delete the phrase "4 right sides", the answer is a rhombus.
An equilateral shape would have equal and opposite sides.
The description given fits that of a square or a rhombus
Opposite sides are parallel; opposite sides are equal; opposite angles are equal.
A parallelogram is a quadrilateral with opposite sides parallel (and therefore opposite angles equal
paramid
Rectangle
opposite the smaller sides are equal and opposite the bigger sides are equal.
A parallelogram has opposite equal parallel sides
it may be a parallelogram or a kite both have opposite sides equal