In a circle of diameter 50cm,the length of a chord is 25cm.Find the length of the minor arc of the chord.

Question

$\begin{array}{1 1}(a)\;\large\frac{\pi}{3}\;\normalsize cm&(b)\;\large\frac{25\pi}{3}\;\normalsize cm\\(c)\;\large\frac{5\pi}{3}\;\normalsize cm&(d)\;\large\frac{7\pi}{3}\;\normalsize cm\end{array}$