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.
a rhombusNotice that if all 4 sides are equal, then they must be parallel.
Square. Square is a quadrilateral and all sides are equal and opposite sides are parallel, the sum of the interior angle measure 3600.
The answer to this question is a parallelagram
its a rhombus