what is the answer? just the last circle please and thank you

To find the circumference of a circle we use the formula
[tex]c=2\cdot\pi\cdot r[/tex]according to the circle ir has a radius of 35/2m.
Insert the data in the formula and use 22/7 as the approximation of pi
[tex]\begin{gathered} c=2\cdot\frac{22}{7}\cdot\frac{35}{2}m \\ c=\frac{22}{7}\cdot35m \\ c=\frac{770}{7}m \\ c=110m \end{gathered}[/tex]