Question

I want a expert or someone that can tell me this %100 I’m offering a brainalist + 20 points

Answer 1

Answer:

The answer is A

Step-by-step explanation:

Supplementary angles are angles which add up to 180°

∠1 and ∠3 add up to 180°, so they are supplementary.

Answer 2

The answer is A. Supplementary angles add up to 180 and are a straight line