Respuesta :

suspho9

Answer:

90°

(the figure is poorly drawn)

Step-by-step explanation:

  • the sum of the interior angles in a triangle is 180°
  • 120 ° and y are in a straight line, so 120° + y = 180 °

find y

180 - 120 = 60°

find x

180 - 60 - 30 = 90°

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