\[Схематический\ рисунок.\]
\[Дано:\ \ \]
\[\angle CEF = 152{^\circ};\]
\[\angle CEM = \angle FEM + 18{^\circ}.\]
\[Найти:\]
\[\angle CEM;\ \angle FEM.\]
\[Решение.\]
\[\angle CEF = \angle CEM + \angle FEM\]
\[152{^\circ} = \angle FEM + 18{^\circ} + \angle FEM\]
\[2\angle FEM = 134{^\circ}\]
\[\angle FEM = 67{^\circ}.\]
\[\angle CEM = 67{^\circ} + 18{^\circ} = 85{^\circ}.\]
\[Ответ:\ \ \angle CEM = 85{^\circ};\ \]
\[\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \angle FEM = 67{^\circ}.\]