# The circumference of a circle is 62.8 meters. What is the length of the diameter of the circle?

If $S$ is the circumference of the circle and $R$ is the radius we
have that $S = 2 \pi \cdot R \implies 2 R = \frac{S}{\pi} \implies 2 R = \frac{62.8}{3.14} \implies 2 R = 20$
Hence the diameter is $d = 2 R = 20 m$