Question

if a ray stands on a straight
line then the sum of two
adjacent angle is -----degree​

Answer 1

Answer:

This is true in general, and we formalize it as an axiom. Axiom: If a ray stands on a line, the sum of the pair of adjacent angles is 1800

Answer 2

Answer:

if a ray stands on a straight  line then the sum of two  adjacent angle is 180° degree​

Information :

This is true in general, and we formalize it as an axiom. Axiom: If a ray stands on a line, the sum of the pair of adjacent angles is 180°.