Answer:
parallelogram, rhombus, rectangle, square
Step-by-step explanation:
The quadrilateral has 4 congruent sides, so it is a rhombus.
Since each pair of opposite sides is congruent, it is a parallelogram.
A parallelogram that has one right angle is a rectangle.
A rectangle with all sides congruent is a square.
Answer: parallelogram, rhombus, rectangle, square
