Question

Jamal’s teacher gave him the following figure and asked him to provide a statement that would guarantee lines a and b are parallel.



Which statement should Jamal use to prove that lines a and b are parallel?

∠7 = 120°

∠2 = 60°

∠4 = 60°

∠3 = 120°

Answer 1

For the two to be parallel, each of the corresponding angles would need to be equal

Answer 2

Its actually quite simple given the choices you have, as angles 2 3 and 4 are all related to line a. So angle 7 = 120 is the answer just by process of elimination

Answer 3

But the reasoning would be that angle 3 and the given angle are equal and angle 7 corresponds to angle 3

Answer 4

so the answer is c