Answer :
Answer:
Given: m1 = m2
If corresponding angles equal, lines are parallel: m2 = m3
Vertical angles are equal: l||m
Substitution: m1 = m3
Step-by-step explanation:
Answer:
Given: m1 = m2
If corresponding angles equal, lines are parallel: m2 = m3
Vertical angles are equal: l||m
Substitution: m1 = m3
Step-by-step explanation: