help me on my geometry class
What is the missing step in the given proof?
Statement: m 4 = m
15
Reason: Substitution Property of Equality
Statement: m 4 + m
8 = 180°
Reason: definition of supplementary angles
Statement: 7 and
8 are supplementary.
Reason: Linear Pair Theorem
Statement: m 4 = m
16
Reason: Transitive Property of Equality
Statement: 15 and
8 are supplementary.
Reason: Transitive Property of Equality
