What quadrilateral has both pairs of opposite sides are parallel? 

1. What is a parallelogram?

A parallelogram is a quadrilateral with both pairs of opposite sides parallel.

2. How can you classify a parallelogram?

A parallelogram can be classified further based on additional properties, such as rectangle, square, or rhombus.

3. What defines a rectangle?

A rectangle is a parallelogram where all angles are right angles.

4. What defines a square?

A square is a parallelogram where all sides are equal, and all angles are right angles.

5. What defines a rhombus?

A rhombus is a parallelogram where all sides are equal.

6. What is the significance of opposite sides in a parallelogram?

Opposite sides in a parallelogram are parallel and congruent.

7. What is the relation between opposite angles in a parallelogram?

Opposite angles in a parallelogram are congruent.