Answer:
1. None of the angles
2. Is not
3. Is not
Step-by-step explanation:
We can see if the triangles are congruent by ASA (angle, side, angle)
We find ∠F in DEF by 180-(64+78)=38 and 38 doesn't equal 39 so they are not congruent.
9
6+x, when x = 3
6+(3)
6+3=9
121
EDG 21
-1/2
negative
its Aor the first option because it has repeated x values making it not a function.
