Name the Property of Congruence that justifies this statement: m¡ÏA + m¡ÏB = m¡ÏC, then m¡ÏA = m¡ÏC ¨C m¡ÏB

Transitive Property
Symmetric Property
Reflexive Property
none of these

3 answers

I can't get the symbols to work so ignore the question.
Many people use m<A to mean "measure of angle A"

Also <= or >= for less/greater than or equal
I really appreciate your help with the symbol meaning. I will use it from now on. You have always been a great help.