Final answer:
The converse of the statement is if a figure is a parallelogram, then it is a quadrilateral. The inverse is if a figure is not a parallelogram, then it is not a quadrilateral. The contrapositive is if a figure is not a quadrilateral, then it is not a parallelogram.
Step-by-step explanation:
(a) Converse: If a figure is a parallelogram, then it is a quadrilateral.
(b) Inverse: If a figure is not a parallelogram, then it is not a quadrilateral.
(c) Contrapositive: If a figure is not a quadrilateral, then it is not a parallelogram.