Respuesta :

Answer:

B

Step-by-step explanation:

Answer:

30.96 mm²

Step-by-step explanation:

area of square: side×side

12×12= 144 mm²

area of circle: πr²

π×6²= 113.01 mm²

area of shaded region: 144-113.01 = 30.96 mm²

hope it helps!!!