Respuesta :

mhanifa

Answer:

  • Sum of exterior angles of a polygon is 360°

#8

  • 2x + 2(64°) + 36° + 48° = 360°
  • 2x + 212° = 360°
  • 2x = 360° - 212°
  • 2x = 148°
  • x = 74°

#9

  • x + 73° + 109° + 90° = 360°
  • x + 272° = 360°
  • x = 360° - 272°
  • x = 88°