Question

good morning..........what is the main formula of stg line?​

Answer 1

Answer:

good morning....

hi

..

Answer 2

sum of all the angles that lie on the same side of a straight line = 180

Step-by-step explanation:

a_______40+ 80+?________b

just assume there are three angles in between

because i cannot draw so..

so 40 + 80 = 120

and 180- 120= 60

that's how we find these angles