\[Рисунок\ в\ учебнике.\]
\[\cup AB = 64{^\circ};\ \cup BC = 92{^\circ}.\]
\[\cup AB + \cup BC + \cup AC = 360{^\circ}\]
\[64{^\circ} + 92{^\circ} + \cup AC = 360{^\circ}\]
\[\cup AC = 204{^\circ}.\]
\[\angle ABC = \frac{1}{2} \cup AC = 102{^\circ}.\]
\[Ответ:\ \ 102{^\circ}.\]