Respuesta :

Answer:

60 degrees

Step-by-step explanation:

Answer:

Option B must be correct.

Step-by-step explanation:

Since this is a right triangle and two sides are equal, it's base angles must be equal. We then know:

  • 180 = 45 + x
  • => 180 - 45 = x
  • => x = 135°

Conclusion:

Hence, Option B must be correct.

Hoped this helped.

[tex]BrainiacUser1357[/tex]