What is the measure of <1 in the figure when <5=65°?

Answer:
65°
Step-by-step explanation:
because the angle 5 and angle 1 lies on a set of parallel lines, and they both are corresponding angles.
And corresponding angles are equal for parallel lines.
I got help from Gauthmath app. Tutors and concept videos which are really helpful. Give it a try you will love it. :)
hope my answer helps.