Answer:
Line FN.
Step-by-step explanation:
A chord is a line whose endpoints both lie on the circle.
All the other lines' endpoints are on the circle.
In line FN, point N is on the circle but point F is not.
This makes line FN not a chord.
Answer:
None
Step-by-step explanation:
None of these, but
so if 64 is an option than that's the correct option

Answer:
7/6
Step-by-step explanation:
(7x/12)/(x/2)
=7/6