Answer:
All parallelograms are quadrilaterals
Step-by-step explanation:
Not all can be rectangles because the angles will sometimes be > 90° and/or < 90°.
Same reason to why it cannot always be a square.
All rhombuses are parallelogram. This is because rhombuses have two pairs of parallel sides. But only some parallelograms are rhombuses, because only some parallelograms have four equal sides.
