Respuesta :

Answer:90 degree

Step-by-step explanation:

Answer:

x = 90°

Step-by-step explanation:

According to the Angle Sum Property of Triangles, the sum of the internal angles is 180°.

  • 55° + x° + 35° = 180°
  • x° + 90° = 180°
  • x = 90°

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