Решебник по геометрии 9 класс Мерзляк Задание 224

\[\cup AB = \cup BC = \cup CD = \cup DE = \cup AE.\]

\[1)\ \angle BAC = \frac{1}{2} \cup BC =\]

\[= \frac{1}{2} \bullet \frac{360{^\circ}}{5} = 36{^\circ};\]

\[2)\ \angle BAD = \frac{1}{2} \cup BD =\]

\[= \frac{1}{2} \bullet \frac{2 \bullet 360{^\circ}}{5} = 72{^\circ};\]

\[3)\ \angle BAE = \frac{1}{2} \cup BE =\]

\[= \frac{1}{2} \bullet \frac{3 \bullet 360{^\circ}}{5} = 108{^\circ};\]

\[4)\ \angle CAD = \frac{1}{2} \cup CD =\]

\[= \frac{1}{2} \bullet \frac{360{^\circ}}{5} = 36{^\circ};\]

\[5)\ \angle DAE = \frac{1}{2} \cup DE =\]

\[= \frac{1}{2} \bullet \frac{360{^\circ}}{5} = 36{^\circ}.\]