Final answer:
The pair of angles that are supplementary is ∠ZTSR and ∠ZUSW.
Step-by-step explanation:
The pair of angles that are supplementary is option d. ∠ZTSR and ∠ZUSW.
To be supplementary, the sum of the angles must be 180°.
We can find the sum of these two angles:
Sum of the angles: 20° + 20° = 40°
Since the sum is not 180°, these angles are not supplementary.