Question

Which is a correct two-column proof?


Given:
Prove: ∠ c and ∠ d are supplementary.


(1 point)
Statements Reasons
1. 1. given
2. a e, fd 2. vertical angles
3. e f 3. alternate interior angles
4. a d 4. Transitive Property
5. a and c are supplementary. 5. definition of supplementary angles
6. d and c are supplementary. 6. substitution












Statements Reasons
1. 1. given
2. a e 2. vertical angles
3. e f 3. alternate exterior angles
4. a d 4. Transitive Property
5. d and c are supplementary. 5