Question

@phi

Answer 1

Do you know what <1 and <2 are?

Answer 2

this is a "definition" question. in other words, you have to memorize what kind of angles 1 and 2 are.

Answer 3

Do you have notes ?

Answer 4

it seems like a shame to just tell you the answer (it will not stick)

but here is what you should learn:
1) alternating interior angles
2) alternate exterior angles
3) corresponding angles
4) vertical angles.