Respuesta :
Area of the circle: A= r² π and this is 1/3.
A = 12² π /3 = 144 π /3 = (144· 3.14) : 3 = 452.16 : 3 = 150.72
The area of the shaded region is 150.72
A = 12² π /3 = 144 π /3 = (144· 3.14) : 3 = 452.16 : 3 = 150.72
The area of the shaded region is 150.72