Respuesta :

aufarsn

Answer:

x=36°

  1. pentagon=540°
  2. one angle of the pentagon=108°
  3. the straight line =180°
  4. 180°-108°=72°
  5. 72° is for the angle of the triangle that consists x
  6. both of the angle is 72°
  7. the interior angle for triangle is 180°
  8. 180°-72°-72°=36°

hope it will be helpful. sorry if there is a mistake.

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