Question

name the property of congruency that justifies this statement if w is congruent to x and x to y then w is congruent to y

Answer 1

I will give you a hint:
look at your definitions for symmetric, reflexive, and transitive
your choice is one of those

Answer 2

transitive

Answer 3

yes
if a=b and b=c, then a=c
the name for this is transitive