The lines in the sides ST and TU indicate that those sides are equal.
And since ST and TU are equal, the following angles must be equal:
The blue angles are equal because the sides opposite to them are equal.
Now, Since we know that the measure of angle U is U=22, the measure of angle S, must be the same:
![S=22](https://img.qammunity.org/2023/formulas/mathematics/college/s70dvvx4ux8l0bjgtz72epfwx8iy85ko14.png)
Answer:
S=22°
U=22°