Answer:
∠ PTR = 140°
Step-by-step explanation:
∠ PTQ and ∠ RTS are vertical and congruent, thus
2x + 16 = x + 28 ( subtract x from both sides )
x + 16 = 28 ( subtract 16 from both sides
x = 12
Thus ∠PTQ = x + 28 = 12 + 28 = 40°
∠ PTQ and ∠ PTR are adjacent and supplementary, thus
∠ PTR = 180° - 40° = 140°
