The groups of the shapes are;
A parallelogram is known to be a kind of a quadrilateral that consist of two pairs of parallel sides.
Note that the opposite sides of a parallelogram is said to be equal in length, and the opposite angles are known to be of the same measure. So this tells that the shapes in group A are parallelograms.
The shapes in the group B are known to have opposite parallel sides and the angle that exist between the adjacent sides is seen as 90 degrees. This tells that the shapes in group A are rectangles
Therefore, The groups of the shapes are;
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