Answer:
∠ Q = 115°
Step-by-step explanation:
Consecutive angles of a parallelogram are supplementary, thus
57x + 1 + 31x + 3 = 180, that is
88x + 4 = 180 ( subtract 4 from both sides )
88x = 176 ( divide both sides by 88 )
x = 2
Thus
∠ Q = 57x + 1 = 57(2) + 1 = 114 + 1 = 115°
