Lines a and b are parallel.   What is the measure of angle s?

Here, angle 158 and u would be equal to 180 as they are supplementary angles,  158 + u = 180 u = 180 - 158 u = 22 Now, u = s   [ Corresponding angles ] s = 22 In short, Your Answer would be 22 Hope this helps!

^^ your answer would be 22