2) triangle FSH and DOG are congruent by ASA because they have two congruent angles and a congruent side in the middle which is where the included side is.
3)CAF and GDZ are congruent by AAS because the two angles are congruent but the congruent side is not in the included side. The other triangle follows the ASA congruence theorem not the AAS one.
(Sorry of this sounds confusing)
