Question

Help, please?

Answer 1

1. <2 and <5 are supplementary - 1. Given

Answer 2

The first statement is the given.
3 is equal to 2 because they are vertical angles.
3 and 5 are supplementary because they are the same side interior angles.
l is parallel to m because of some theorem, can't remember the exact name, but it states that if the same side interior angles add up to 180, then the lines must be parallel.

Answer 3

, if <2 + <5 = 180, and <5+<6 = 180( by definition), so, <2 = <6, and by thales theorem, l must be paralel to m

Answer 4

Thank you!