Respuesta :

Answer:

Here,

  • x+2+3x+6 = 180 [ Sum of opposite angle of cyclic quadrilateral is Supplementary ]
  • 4x + 8 = 180
  • 4x = 180 - 8
  • x = 172/4
  • x = 43

Now,

  • Angle A = 3 * 43 + 6
  • = 129 + 6
  • = 135