Verified answer

The sum of the exterior angles of a triangle=360°

ie x+2x+3x=360°

6x=360°

x=360°/6

x=60°

Good luck !

Sum of 3-exterior angles of a triangle = 360 degrees,

SO,

x + 2x + 3x = 360,

6x = 360,

x = 360 / 6 = 60 degrees > ====================< ANSWER

30.

The angles of a triangle add up to 180, and 30 is the only one of the options that works

30+(2x30)+(3x30) = 30+60+90 = 180

sum of exterior angles = 180°

so x+2x+3x= 6x

6x=180

x= 30