Me you very much. i have 3 questions. the 3rd question has 2 answers.

First one:

I'd say the third one is correct, angles at vertex are equal and you can use SSa to prove that the two sides are equal and even the angle that is not included within the congruent sides.

Second one:

SAS is correct, two congruent sides and congruent angles.

Third one;

ANG = RWT and NAG = RTW

Hope I did it right.