what is the reason for the last step in given proof?

Substitution property of equality

linear pair theorem

congruent supplements theorem

transitive property of equality

For parrallel lines cut by a transversal, corresponding angles are congruent.

Question

what is the reason for the last step in given proof?

Substitution property of equality

linear pair theorem

congruent supplements theorem

transitive property of equality

For parrallel lines cut by a transversal, corresponding angles are congruent.

anonymous · Answer

attachment

anonymous · Answer

attachment

anonymous · Answer

@Krissy1997 are you good at proofs?

anonymous · Answer

Semi yes

anonymous · Answer

can you help me?

anonymous · Answer

i'll try

anonymous · Answer

thanks so much I was thinking it was Linear pair theorem

anonymous · Answer

did they give you oppinses.... sorry i can't spell

anonymous · Answer

up top in my question is the choices

anonymous · Answer

i think it is Linear pair theorem

anonymous · Answer

can you have a linear pair on a different transversal plane?

anonymous · Answer

i mean i liked at all the angles the others statements on the graph and looked at the reasons.... and angles JIK and IJL have the same measurement

anonymous · Answer

so would that make them congruent?

anonymous · Answer

Sorry Im really confused not sure if Linear has to be 90 degrees if so then these angles are not

anonymous · Answer

kinda yes and not really not trying to confuse you though

anonymous · Answer

so which one do you think it is

anonymous · Answer

linear pair theorem

anonymous · Answer

thank you!!!