Identify the probability to the nearest hundredth that a point chosen randomly inside the rectangle is either in the circle or in the square. HELP PLEASE!!

Total area = 12 x 24.6 = 295.2
Area of circle = 3.14 x 3.6² = 40.69
Area of square = 4.2 x 4.2 = 17.64
Square and circle = 40.69 + 17.64 = 58.33
Probability = 58.33/295.2 = 0.1976
Rounded answer = 0.20