Answer:
80
Step-by-step explanation:
The sum of two interior angles in a triangle is equal to an exterior angle that is supplementary to the third interior angle:
30 + 4x + 2 = 8 + 6x add like terms
32 + 4x = 8 + 6x move like terms to the same side of the equation:
32 - 8 = 6x - 4x
24 = 2x divide both sides by 2
12 = x now to find the angle replace x with 12
8 + 6*12 = 80
