Question

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

Answer 1

To find the circumference of a circle we use the formula

`c=2\cdot\pi\cdot r`

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

`\begin{gathered} c=2\cdot(22)/(7)\cdot(35)/(2)m \\ c=(22)/(7)\cdot35m \\ c=(770)/(7)m \\ c=110m \end{gathered}`