Answer:
30° , 60° , 90°
Explanation:
The sum of the 3 angles in a triangle = 180°
sum the 3 angles and equate to 180
x + 2x + 3x = 180 , that is
6x = 180 ( divide both sides by 6 )
x = 30
2x = 2 × 30 = 60
3x = 3 × 30 = 90
the 3 angle measures are 30° , 60° , 90°