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°

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°

anonymous · Answer

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anonymous · Answer

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

anonymous · Answer

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

anonymous · Answer

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

anonymous · Answer

so the answer is c