PLEASE HELP ME Which additional piece of information would allow you to prove that the triangles are congruent by the HL Theorem?
Select one:
A. m angle D F E equals 40
B. m angle F equals m angle A B C
C. stack A B with bar on top approximately equal to stack D E with bar on top
D. stack A C with bar on top approximately equal to stack D F with bar on top

Please and thank you

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem

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