The area of a circle is: pi times the radius squared.
The circumference is: pi times the diameter
The radius is: the diameter divided by 2. In this case it’s 4.
So the area is: 3.14 x 4 squared = 50.24
The circumference is: 3.14 x 8 = 25.12
Hope this helped and pls mark as brainliest!
~ Luna