In the diagram below, what is the approximate length of the minor arc ?
X
O A. 5.7 cm
40"
9 cm
O B. 7.1 cm
N
O C. 6.3 cm
D. 3.1 cm
![In the diagram below what is the approximate length of the minor arc X O A 57 cm 40 9 cm O B 71 cm N O C 63 cm D 31 cm class=](https://us-static.z-dn.net/files/ded/704e2150040a3dd113ac4df361774d6d.png)