Answer:
4pi
Step-by-step explanation:
The area of a circle is given by
A = pi r^2
where r is the radius
The radius of a circle is found by
r =d/2 where d is the diameter
r = 4/2 = 2
So A = pi (2)^2
pi (4)
first one is A second on is C third is B fourth is B HOPE THIS HELPS
i believe it is a bc they are both equal but if wrong im sry
