Answer:
AN = 16 units
Step-by-step explanation:
So we can use the fact that 
- Since this is an isosceles triangle, segments FO and FR are both equal to 7
Manipulating the equation above to solve for AN we have 
- Substituting in the known values we have

Y=Mx+b (m is slope, b is y-intercept)
<span>-6f+13=2f-11
-6f - 2f = -11 - 13
-8f = -24
f = 3</span>