Dennis: What should we put in reason 1? Vincent: We should start with what we know. Dennis: Right, I remember now, we should always start with the ______________. Vincent: For reason 2, we should look at the relation of the first statement and the second statement. Dennis: Since ̅̅̅̅ bisects ∠, it follows that ∠ ≅ ∠ due to the definition of _________________. Vincent: That’s right. To answer statement 3, we should take into account reason 3. Dennis: Reflexive property tells us that something is congruent to itself like ≅ . Vincent: So statement 3 should be _________________________. Dennis: Yes. The last statement should be the statement we want to prove right? Vincent: That’s correct, so our last statement should be ______________________. Dennis: For reason 4 let’s look at our figure again after putting some marks on the congruent parts. Vincent: Wait I recognize that pattern that is​