Given: lines a and b are parallel and line c is a transversal.
prove: 22 is supplementary to 28
what is the missing reason in the proof?
statement
reason
1. a || b, is a transv 1. given
2. 262 22
2. ?
3. m26=m22
3. def. of congruent
4. 26 is supp. to 28 4. def. of linear pair
5. z2 is supp. to 28 5. congruent supplements
theorem
12
h
corresponding angles theorem
alternate interior angles theorem
vertical angles theorem
alternate exterior angles theorem