Answer:
See below
Explanation:
We are given:
and we are asked to prove
KM ║ LN
Proof
Given JM ║ KN, by the corresponding angles postulate if two parallel lines are cut by a transversal then the corresponding angles are congruent
Therefore
∠1 ≅ ∠3
and
∠2 ≅ ∠4
Since ∠1 ≅ ∠2 and ∠3 ≅ ∠4 we can conclude that ∠2 ≅ ∠4
By the converse of the Corresponding Angles Postulate, if two lines are cut by a transversal and corresponding angles are congruent the two lines are parallel
Since ∠2 and ∠4 are formed by the transversal JKL intersecting lines KM and LN and since they are congruent we can conclude
KM ║ LN
Hope that helps