cutiepiej2008 cutiepiej2008
  • 26-03-2021
  • Mathematics
contestada

Answer this question to get marked as brainliest plus 20 points!!!!!

Answer this question to get marked as brainliest plus 20 points class=

Respuesta :

mhanifa
mhanifa mhanifa
  • 29-03-2021

Answer:

  • A. 91°

Step-by-step explanation:

  • ∠A ≅ ∠B as vertical angles
  • ∠B + 47° + 42° = 180° (straight angle)
  • ∠B = 180° - 89° = 91°
  • ∠A = ∠B = 91°
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