Answer:
x = 20
∠2 = 72
∠8 = 108
Step-by-step explanation:
∠2 and ∠8 are supplementary angles so ∠2 + ∠8 = 180
(3x + 12) + (5x + 8) = 180
3x + 12 + 5x + 8 = 180
8x = 160
x = 20
∠2 = 3x + 12 = 3(20) + 12 = 60 + 12 = 72
∠8 = 5x + 8 = 5(20) + 8 = 100 + 8 = 108
