a circle has diameter of 26 mm. What is it’s circumference

circle has diameter of 26 mm.
[tex]\begin{gathered} \text{The circumfernce of circle - 2}\Pi r \\ As,\text{ diameter = 2r} \\ It\text{ is given that diameter = 26 mm} \\ So,\text{ 2r =26} \\ \text{Substitute the value of 2r =26 and }\Pi=3.14\text{ in the expression of circumference} \\ \text{Circumference of circle = 26}\times3.14 \\ \text{Circumference of circle = }81.64\text{ mm} \end{gathered}[/tex]..