Help plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz 10 points

[tex]\large\boxed{\tt Answer:~2\pi ~or~around~6.283~units}[/tex]
[tex]\tt Step-by-step~explanation:[/tex]
The equation for finding the circumference of a circle:
If the radius of this circle is 1, then that means the diameter is 2. We multiply 2 by π to get our answer: 2π or approximately 6.283.