The area of the composite figure can be found by calculating the area of the larger rectangle and the smaller rectangle separately, and then adding them together.
Area of the larger rectangle: Length x Width = 5 x 4 = 20 square units
Area of the smaller rectangle: Length x Width = 3 x 2 = 6 square units
Total area of the composite figure = 20 + 6 = 26 square units
Therefore, the area of the composite figure is 26 square units.