Question

Find the variables (arrows indicate that the lines are parallel.​

Answer 1

Answer:

The measurement of a=60°

The measurement of b=120°

Step-by-step explanation:

From the given figure:-

two parallel lines intersected by a transversal then

b=120°

(alternative exterior angles are equal)

and

a+b=180°

(linear pair )

=>a+120°=180°

=>a=180°-120°

=>a=60°

therefore ,

a=60°

b=120°