1) Since according to the picture, the Diameter measures 8 cm, we can state that the Radius is 4 cm. Because D= 2R
2) The circumference is the perimeter of a circle.
Plugging into the formula:
[tex]\begin{gathered} C=2\pi R \\ C=2\pi(4) \\ C=8\pi\text{ cm} \end{gathered}[/tex]
3) So the circumference measures 8π cm
