Question

line l parallel line m and line and is transversal find value of a ​

Answer 1

Answer:

Step-by-step explanation:

since line is parallel 60+2a=180

then 2a=180-60=120

2a=120

then a=120/2=60degrees

Answer 2

Answer:

2a + 60 = 180°

2a = 180 - 60

2a = 120

Step-by-step explanation:

a = 120/2

= 60

and 2a = 60 × 60 = 120°