Which statements are true? Select each correct answer.

m∠3=120°

m∠3=m∠1

m∠2=60°

​m∠1=60°​

A triangle formed by lines n and m and an unlabeled line. Two points on the triangle are Q and R, with Q forming a 65 degree angle and R forming a 55 degree angle. The point formed by the intersection of line n and m has angles 1, 2, 3, and an unlabeled angle inside the triangle.

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