This is the all question?
It is b only b I think sorry If I am wrong have a good day
The person above me is right. It’s A , you have to add
The answer would be 15:3 :)
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.