It is given that the triangles ITH and APG are congruent.
When the two triangles are congruent, then the corresponding angles and sides are congruent to each other.
By being congruent, the corresponding angles which are congruent are:

Therefore, 
SO, Option 2 is the correct answer.
19 i think though im pretty sure it is
Your answer for your question is going to be.... um.... sorry I forgot
16. You add 13 to 35 which makes 3y=48. Then to get y by itself you have to divide both sides by 3. 48/3=16.