Is a rectangle a parallelogram always, sometimes or never?

Always

For this question all you need to know are the properties of each shape.

The Properties of a Rectangle are

• 4 right angles
• 4 sides (Polygonal)
• 2 pairs of opposite congruent sides
• congruent diagonals
• 2 sets parallel sides
• Perpendicular bisecting diagonals
• Both diagonals bisect angles

The Properties of a Parallelogram

• 4 sides
• 2 pairs opposite congruent sides
• 2 sets of parallel sides
• both pairs opposite angles are congruent
• diagonals bisect each other

Since the question is asking if a rectangle is a parallelogram you would check to make sure all the properties of the parallelogram agree with those of a rectangle and since they all do the answer is always.