What is the missing reason in the proof shown?
A
4x B Symmetric Property
4x C
Distributive Property
4× E
Transitive Property
Commutative Property
Reflexive Property
70
Given: AB DB, AC DC
Prove: A ABC ADBC
Statements
1. AB
2. BC
3 SABC
DB. AC DC
BC
ADEC
Reasons
1. Given
2. ???
3. SSS