Question

In fig. shown lines l and m are parallel to each other and line p is the

transversal. Find the measures of angles ∠a and ∠b. of​

Answer 1

Step-by-step explanation:

<A+140=180----(linear angle)

<A=40

<A=<B------ (alternate angles)

<B=40

Answer 2

40°

Step-by-step explanation:

angle a = 180-140 = 40 ( linear pair )

angle a and b are pairs of alternate angles

i.e angle a = angle b

so, angle a = 40, angle b is also = 40