Answer:
The formula to get the circumference of a circle is
but in this case we see that a diameter is being used therefore we can get rid of the 2 and the r because that is what the diameter and just replace d into there like this
.
We can then input the value and we get that
![C=3.142](https://img.qammunity.org/2023/formulas/mathematics/high-school/cw7bfov30ft01p5cbh8srzud7bu168hep3.png)
Hope this helps! Let me know if you have any questions