Answer: 25.12 cm
The circumference of the circle is solved using the following formula:
[tex]C=2\pi r[/tex]From the problem, we know that:
d = 8cm; r = d/2 = 4cm
π = 3.14
Substitute these to the formula and we will have:
[tex]\begin{gathered} C=2\pi r \\ C=2(3.14)(4\text{ cm}) \\ C=25.12\text{ cm} \end{gathered}[/tex]With this, we know that the circumference of the given circle is 25.12 cm.