Respuesta :

 2 : 3 : 4.....add them = 9

2/9 * 180 = 360/9 = 40
3/9 * 180 = 540/9 = 60
4/9 * 180 = 720/9 = 80
Nehhaa
2x +3x +4x = 180 9x = 180 x = 20 2x = 40 3x = 60 4x = 80