Answer:
∠ 1 = 66°, ∠ 2 = 114°
Step-by-step explanation:
∠ 1 and ∠ 2 are adjacent angles and are supplementary ( sum to 180° ), then
2x + x + 81 = 180 , that is
3x + 81 = 180 ( subtract 81 from both sides )
3x = 99 ( divide both sides by 3 )
x = 33
Thus
∠ 1 = 2x = 2 × 33 = 66°
∠ 2 = x + 81 = 33 + 81 = 114°
