hello
to solve this problem, we simply need to use the formula of circumference of a circle
now, let's write down our data in the question
![\begin{gathered} c=\text{ ?} \\ d=8.2\operatorname{cm} \\ \pi=3.14 \end{gathered}]()
in this question, we are given the value of diameter and not radius, so we have to find the radius from the diameter.
the relationship between diameter and radius is
now, let's find the radius of the circle
![\begin{gathered} r=(8.2)/(2) \\ r=4.1\operatorname{cm} \end{gathered}]()
now, we an proceed to solve for the circumference
![\begin{gathered} c=2\pi r \\ c=2*3.14*4.1 \\ c=25.748\approx25.75\operatorname{cm} \end{gathered}]()
from the calculations above, the circumference of the circle is 25.75cm