Respuesta :

it MAY be c or d if not those then b i guess
bcalle
V = (1/3) pi r^2 *h (cone )
V = pi r^2 * h (Cylinder)

V = (1/3) pi * 4 * 3 * 2
V = 8pi

V = pi * 4* 3
V = 12pi

8pi + 12pi = 20pi cm^