Respuesta :

Answer: B

Step-by-step explanation:

First find the area of the rectangle:

A = lw

A = 6*12 = 72 mm^2

Find the area of the semi circle:

A = (pi*r^2)/2

A = (3.14)*(3^2)/2 = 14.13 mm^2

Total area = 72 + 14 = 86 mm^2