Respuesta :

Answer:

b) 95 degrees

Step-by-step explanation:

Remember that the internal angles of a triangle add up to 180°.

Solving :

  • 45° + 40° + ∠x = 180°
  • ∠x + 85° = 180°
  • ∠x = 95 degrees

Let that angle be x

Apply angle sum property

  • x+45+40=180
  • x+85=180
  • x=180-85
  • x=95°
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