Ответ:

α` = 60°

β` = 135°

γ` = 25°

Объяснение:

α` = 360° * ( α / 2π ) = 360°  * (π/3 / 2π)  = 360° * 1/6 = 60°

β` = 360° * ( β / 2π ) = 360°  * (3π/4 / 2π)  = 360° * 3/8 = 135°

γ` = 360° * ( γ / 2π ) = 360°  * (5π/36 / 2π)  = 360° * 5/72 = 25°