Respuesta :

kabitalamichhane32

Answer:

1st angle = 30

2nd angle = 60

3rd angle = 90

Step-by-step explanation:

  1. let ,1st angle be x , 2nd angle be 2x and 3rd angle be 3x
  2. x+2x +3x =180
  3. 6X =180
  4. x =180/6
  5. x =30