Answer:A parallelogram is a quadrilateral with the following properties:1. *Opposite sides are equal*: The lengths of opposite sides are equal.2. *Opposite angles are equal*: The measures of opposite angles are equal.3. *Adjacent angles are supplementary*: The sum of adjacent angles is 180 degrees.4. *Diagonals bisect each other*: The diagonals intersect at their midpoints.These properties can help you identify and work with parallelograms in geometry.Step-by-step explanation:I hope it helps