Question

I have no idea how to do this, please give an answer and an explanation. please and thank you!

Answer 1

Since the radius is given as 5 and pi is used as 3.14, plug it into the “hint” part of your picture. When you do that you get 31.4

Answer 2

When measuring circumference, you do diameter (your radius x2) times Pie (3.14). So, you do 5 times 2 times 3.14. The answer is 31.4. Hope this helps!