What do the rhombus and the parallelogram shown below have in common? A rhombus. A parallelogram. Only opposite angles are congruent. Only opposite sides are parallel. All sides are congruent. Both opposite sides and opposite angles are congruent.

Only opposite sides are parallel.

Both opposite sides and opposite angles are congruent.

Step-by-step explanation:

They are both quadilaterals.

Properties of a parallelogram:

opposite sides congruent

opposite angles congruent

opposite sides parallel

diagonals bisect each other

while for a rhombus,

diagonals are perpendicular

all four sides are congruent