Respuesta :
The formula for surface area of a sphere: A = 4 pi r^2.
Since the radius is 30 m then A = 4pi30^2.
30^2 x 4 =3600
A=3600pi m
Since the radius is 30 m then A = 4pi30^2.
30^2 x 4 =3600
A=3600pi m