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Shapes that are quadrilaterals have four sides. Let's identify the quadrilaterals among the given options:
1. Parallelogram - This is a quadrilateral because it has four sides with opposite sides that are parallel.
2. Rectangle - Another quadrilateral with four sides where each angle is a right angle.
3. Rhombus - A quadrilateral with four sides of equal length but unlike a square, the angles are not necessarily right angles.
4. Square - This is a special type of rectangle and rhombus where all sides are equal in length and all angles are right angles.
Therefore, the shapes that are quadrilaterals from the list provided are:
- Parallelogram
- Rectangle
- Rhombus
- Square
These shapes have four sides, making them quadrilaterals.