Answer:
16 pi or approximately 50.24
Explanation:
The area of a circle is given by
A = pi r^2 where r is the radius
r = d/2 where d is the diameter
r = 8/2 =4
So plugging into the equation for the area
A = pi (4)^2
A = 16pi
Using 3.14 as an approximation for pi
A = 16*3.14 =50.24