Which pairs of angles in the figure below are vertical angles? Check all that apply.

A. ZDTN and ZATP
B. ZBTD and ZATP
OC. ZATN and ZRTD
D. ZRTP and ZATB

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Solve 2x+y=3 x+y=5 in substitution method

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