ГДЗ по геометрии 8 класс Мерзляк Задание 285

\[1)\ 84{^\circ}:\]

\[a = \frac{1}{2} \bullet 84{^\circ} = 42{^\circ}.\]

\[2)\ 110{^\circ}:\]

\[a = \frac{1}{2} \bullet 110{^\circ} = 55{^\circ}.\]

\[3)\ 230{^\circ}:\]

\[a = \frac{1}{2} \bullet 230{^\circ} = 115{^\circ}.\]

\[4)\ 340{^\circ}:\]

\[a = \frac{1}{2} \bullet 340{^\circ} = 170{^\circ}.\]