In the given diagram, m || n.
Prove: 1 ~ 5
3
m
2
8
5
7
Statements
1. m || n
2. 17
3. ?
4. 1 5
~
6
n
Which statement is missing in the proof?
OA. 16
OB. m 5+ m *7 = 180°
O C. 37
OD. *7 ~ 5
6
given
alternate exterior angle theorem
vertical angles theorem
transitive property of congruence
Reasons