Answer: The answer is 90.
Step-by-step explanation:
Answer:
30 ft^2
Area of square = 12 x 12 = 144
Area of circle = 3.14 x 6^3 = 3.14 x 36 = 113.04
So area of the remaining board = 144 - 113.04 = 30.96
Answer: 30 ft^2
