M=(x1+x2/2, y1+y2/2)
M= (2, -4)
Answer:
See below.
Step-by-step explanation:
Statements: Reasons:
1)
Given
2)
Definition of Congruence
3)
Segment Addition Postulate
4)
Substitution Property
5)
Transitive Property
6)
Subtraction Property (of Equality)
7)
Definition of Congruence