Question 108
Put 6 points $A$, $B$, $C$, $D$, $E$, $F$ on the circumference of a circle in this order in such a way that the following conditions are satisfied: arc $AB$ and arc $BC$, arc $CD$ and arc $DE$, and arc $EF$ and arc $FA$ have same lengths, respectively. Determine the value of the angle $\angle BFD$ if $\angle ACE = 68^\circ$. (Caution: the following diagram may not be accurate.)
