Question

2. In the figure b = 123 and a = 57 are the lines m and n parallel ? Justify ?​

Answer 1

Answer:

yes they r parallel.

Step-by-step explanation:

given: b=123

a=57

proof: the sum of a and b = 180 so they form co interior angles/consecutive interior angles... Hence we can say that they are parallel.

Hope it helps!!

Answer 2

yes they are parallel as line ab intersects it and the sum of their interior angles is 180°.