Answer:
24
Step-by-step explanation:
4x + 6 = 102
-6. -6
4x= 96
x=24
Sum of all angles of triangle=180°
So, 102 + 4x + 6 + x = 180
or 5x + 108 = 180
or 5x = 180 - 108
or 5x = 72
or x = 72/5
or x = 14.5
So, x = 14.5°