Question

if the sum of two adjacent angles is 180 degree then the non common arms of an angle are in a straight line

Answer 1

Answer:

non common arms are in straight line  if sum of two adjacent angles is 180°

Step-by-step explanation:

If the sum of two adjacent angles is 180 degree then the non common arms of an angle are in a straight line

Yes , Given statement is true

Let say OC is common Arm  & OA , OB are non common arms

∠AOC  = α

∠BOC = β

α + β = 180° given sum of two adjacent angles is 180°

∠AOB = ∠AOC + ∠BOC = α + β = 180°

this mean AOB is a straight line

O is a point on line AB

Hence non common arms are in straight line

Answer 2

Answer:

if sum of 2 adjacent angles is 180 then the non common arms form a line