Answer:
L is not parallel to m because ∠1 and ∠2 are not supplementary, they are congruent.
Explanation:
Taking into account the figure, ∠1 and ∠2 are same-side interior angles. However, the error in Noemi's reasoning is that the converse of the same-side interior angles says that when these angles are supplementary, the lines are parallel.
So, we can't say that l || m because ∠1 and ∠2 are not supplementary, they are congruent.
Where congruent means that they have the same measure and supplementary means that they add to 180 degrees.
