Question

19. Given that the lines are parallel, what angle is congruent to angle 6?

Answer 1

The answer is B because the opposite would be in the outside

Answer 2

I can help you with the first two problems. Since it's what I've recently studied.
19. Angles 3 and 4 (they are corresponding and alternative interior) are congruent with angle 6.
20. Angles 2 and 5 (corresponding and alternative interior) are congruent with 6.