Question

plzz ans I will make u bainliest ​

Answer 1

Answer:

when x=90and y=90then abc will became Aline

Answer 2

Answer:

180

Step-by-step explanation:

as per definition a line is perfectly straight and extends for ever in in both directions.

ABC will be a line only when it is extended in  both direction i.e(x+y=180).

i hope it might be helpful.