Question

if l // m , then value of is​
by step-by-step

Answer 1

Answer:

it is A) 60°

Step-by-step explanation:

a straight line makes an angle 180°and we are given that external angle is 120so on that line ( L- line) the other angle is

180-120= 60°

as we know that , sum of the internal angles are same so X is lle to 60°

so therefore x= 60°