marinatagomori 26/04/2022 80° + 110° + 50° + x = 360°80° + 160° + x = 360°240° + x = 360°x = 360° - 240°x = 120°
marinatagomori
80° + 110° + 50° + x = 360°
80° + 160° + x = 360°
240° + x = 360°
x = 360° - 240°
x = 120°