Question

the reflexive property of congruence lets you say that angle PQR is equivalant to

Answer 1

the reflexive property is the idea that x = x for any number x

Answer 2

it seems trivial I know, but it's just the basic idea that any number is equal to itself

Answer 3

The reflexive property of equality is that something equals itself. Think of the word "reflexive" as related to "reflexion." Unless you use a funny mirror, the reflexion you get from a mirror equals the original object.