16. (5 points)
The Reuleaux triangle is a famous shape. By using the vertices of an equilateral triangle as the centers and its side length as the radius to draw three circular arcs, a Reuleaux triangle can be formed. In the figure below, the perimeter of the Reuleaux triangle is $314 \mathrm{~cm}$, then the side length of the central equilateral triangle is $\qquad$ $\mathrm{cm}$. ( $\pi$ is taken as 3.14)
$100$