Question

what am i missing?
i need help naming postulates and theroms

Answer 1

You need a reason for statement 3.
How did the proof go from statement 2 to statement 3?
In statement 2, two angles are shown to be congruent.
Then statement 3 states the same two angles have the same measure.
What does "congruent angles" mean?

Answer 2

it means they equal the same measurement?

Answer 3

Correct.
The definition of congruent angles is:
Two angles are congruent if they have equal measures.

That means that if in one statement of the proof you state that two angles are congruent, then on the next line you can state the measures of those two angles are equal. The reason is "definition of congruent angles."

This is what was done in this proof.
In statement 2, you have two congruent angles.
Statement 3 states that the measures of the angles are equal.
Reason 3 is "definition of congruent angles."