The area of a parallelogram is base * hight.
Choice A: base = 10 & hight = 12,
so area = 10*12 = 120
Choice B: base = 10 & hight = 6,
so Area = 10*6 = 60
To practice, try to find the area for choice c & d.
If your still having trouble, search Google for "how to find area of a parallelogram".
