Answer:
113.097
Explanation:
So, when the line is going all the way through the circle, this is called the diameter.
The diameter of this circle is 36.
The diameter is just twice the radius (which is why we do 2 pi r when doing radius)
The equation using diameter is
= C
So, plug in 36 for d and use your calculator to solve the rest.
The answer should be 113.097
I hope this helps!