Let U = {1, 2, 3, 4, 5, 6), A = {3, 4, 5), B = {3,5,6), and C = {2, 6). List the elements of the following sets. (a) (AUB)'
(d) AnBnC'
(g) (AUB)n(AUC)
(b) AUBUC
(e) A'nBNC
(h) (ANB)U(ANC)
(c) AnBNC
(f) BUC
(i) A'nc'

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