What is the figure
please give full question
I can’t see the data did you forget to put it or like forget to put a picture???
The radius is 2 and area = r^2*pi so 4*pi gives you 12.56 so the exact answer would be 12.56 and the answer with pi would be 4 times 3.14!
In order to do this you must use what is called a discipline to get your answer