Question

la tercera parte del angulo es 80

Answer 1

1er ángulo = x
2do ángulo = x/3

x + x/3 = 80

(3x +x)/3  = 80

4x/3 = 80

4x = 80 (3)

4x = 240

x = 240/4

x = 60

1er ángulo = 60
2do ángulo = 60/3 = 20