Question

is it possible to prove that lines a and b are parallel? If so, explain.

Answer 1

i need help on this one.

Answer 2

They'll be parallel if A and B equal :)

Answer 3

but what definition or postulate can i use?

Answer 4

You can use the Consecutive interior angles theorem

Answer 5

so, B = 180 - 49 - 54 = 77

Answer 6

thanks

Answer 7

did you solve the problem?

Answer 8

@MathGirlyGirl Did you check this answer?
I rotated the diagram to look at the angles.