Question

I tried everything and I cant get the 2nd answer for this

Answer 1

Explanation:

I don't know what you can do regarding predefined options.

but yes, the proof goes

angle 2 + angle 3 = 180°

angle 3 + angle 4 = 180°

therefore,

angle 2 + angle 3 = angle 3 + angle 4 | ‐ angle 3

angle 2 = angle 4

that's it.

you were totally close. just this one last little step was missing.

again, I don't know. what options you have to express this.

Answer 2

opposite angles are equal

Explanation:

The reason is that opposite angles are equal. I don't know if it says it but if you need 3 reason, if P is the midpoint, nP = P to the end of that line and mP = P to the end of that line giving you 3 reasons