Question

what error did tyler make? m∠1 = 72 by same - side exterior angles theorem x while there is not same - side exterior angles theorem, same - side exterior angles are supplementary, not congruent congruent complementary, not congruent

Explanation:

Same - side exterior angles are supplementary (add up to 180°) when two parallel lines are cut by a transversal, not congruent. Tyler wrongly assumed they are congruent using a non - existent "Same - Side Exterior Angles Theorem".

Answer:

supplementary, not congruent