Using the formula for the area of a parallelogram, A = BH, A = area, B = base, and H = height. So, using the formula, you want to find one of the area's then multiply it by 4. So, 5.4 * 3.8 = 20.52. Then you would multiply it by 4. 20.52 * 4 = 82.08 m2. Hope this helped!!
