Place the parrallelograms in order from least area to greatest area 3cm 4cm 4cm
3cm 5cm 4cm
3cm 4cm 6cm
3cm 4cm 4cm = 12 square cm
3cm 5cm 4cm = 15 square cm
3cm 4cm 6cm = 18 square cm
Therefore, the parallelogram with the least area is the one with sides 3cm, 4cm, and 4cm, followed by the one with sides 3cm, 5cm, and 4cm, and the one with the greatest area is the one with sides 3cm, 4cm, and 6cm.