Answer:
12.56
Step-by-step explanation:
the Formula for the area of a circle is A = Pi x radius squared
now for PI we use 3.14
the Diameter is 4 so that means the radius is 2
so do the math 3.14 x 2 x 2
and that equals 12.56
please let me know if I did something wrong so I can improve have a nice day
