brainliest if it is right

Answer:
18.8
Step-by-step explanation:
multiply pi by the diameter (6 cm) and you get the circumference
hope that helps
Answer:
[tex]6 / \pi = 1.91[/tex] ≈ [tex]2\pi r = 2 * \pi * 6[/tex] ≈ [tex]37.69~nearest~hundredth[/tex]
Hope it helps and hope it's right.