To find the measure of each angle you add all of the sides
Then, all triangles equal 180
3x + 2x + x = 180
Like terms
6x = 180
/6. /6
X = 30
Now to find the measures of the angles
You plug in the value of x
1st angle =. 3x
3(30)
=90
2nd angle = 2x
2(30)
=60
3 angle =. X
=30
Glad I could help
