Statement 1: k || l
Reason 1: Given
Statement 2: Angle 3 is supplementary to angle 7
Reason 2: Assumed from diagram
Statement 3: Angle 1 and Angle 3 are congruent
Reason 3: (I actually cant remember the reason for this one or what it is called, but I know that angle 1 and 3 are congruent. Hopefully you can remember this one because I cant)
Statement 4: Angle 1 is supplementary to Angle 7.
Reason 4: Substitution Property
Sorry for not remembering reason 3. Hope this still helps
