Answers are
16) B =SAS
we have a vertical angle and two sides congruent
17) E = HL
if hypotenuse and leg of one right triangle are congruent to the hypotenuse and a leg of a second right triangle, then the triangles are congruent.
18) F = not congruent
not congruent, not same sides with tick marks
19 A = SSS
We have 3 congruent sides
20) B = SAS
We have two congruent sides and right angle
21) E = HL
if hypotenuse and leg of one right triangle are congruent to the hypotenuse and a leg of a second right triangle, then the triangles are congruent.
22) A, B, C and D are true. If I had to chose one, I would chose SSS.
If in two triangles, corresponding angles are equal, then their corresponding sides are in the same ratio (or proportion) and the two triangles are similar. So three angles AAA gives SSS, ASA, SAS, and AAS.
23) D =AAS
we have two angles and a congruent side