Respuesta :

mhanifa

Answer:

  • 65

Step-by-step explanation:

If angles A and C are congruent, then opposite sides should be congruent as well:

  • AB = BC
  • 4x + 25 = 2x + 45
  • 4x - 2x = 45 - 25
  • 2x = 20
  • x = 10

Then AB is:

  • AB = 4x + 25
  • AB = 4*10 + 25 = 65