Area:
The formula for the area of a circle is A=[tex]\pi r^{2}[/tex]. The problem gives the diameter (4); half of the diameter is the radius (r=2).
A=2π
A=6.2831m^2
Circumference:
The formula for the circumference of a circle is A=πd.
A=4π
A=12.5664m
Hope this helps!!
