Circumference formula: C=2(pi)r
C=circumference (what you’re looking for)
2= just the number 2
Pi=3.14
R=radius
Start by finding R (radius), should be given to you in circle. It’s the line inside of it. Half of that equals the radius, and a full line across the whole circle creates the diameter. But you don’t need to worry about diameter.
Now let’s say our radius is: 3
We replace the variable ‘r’ for its correct number in the circle (in this example equation we have 3)
Our equation will look like this: C=2(3.14)(3)
Now it’s simple, just multiply them all together.
So my answer would be 18.84
Hope this helps