Question

please solve the problem

Answer 1

so ur ans is if an two angle sum is 180 and the lies on two points so the line emerge by joining the point is a line

Answer 2

Given-

Angle AOC =90 DEGREES
Angle AOB=90 DEGREES

So,
AOC+AOB=BOC...........(1)

And,
AOC+AOB=90+90
AOC+AOB=180...................(2)

From 1 and 2,
BOC=180

By Linear Pair, BOC Is A Line