Answer:
Option 2nd is correct
surface area(A) of a sphere is, [tex]64 \pi[/tex] square inches.
Step-by-step explanation:
Surface area(A) of a sphere is given by:
[tex]A = 4 \pi r^2[/tex] ......[1]
where, r is the radius of the sphere.
As per the statement:
Radius of the sphere(r) = 4 inch.
Substitute in [1] we have;
[tex]A = 4 \pi \cdot (4)^2 =64 \pi[/tex] square inches.
Therefore, surface area(A) of a sphere is, [tex]64 \pi[/tex] square inches.
