Find Length X in Triangle: Learn How to Calculate It

[ketanco]

what is the length x? (FH and HC perpendicular too, which I missed to write)
I am totally stuck can not make any progress on this question. Answer should be 5. I don't know how to obtain it

View attachment 8571

 

[Wilmer]

FH and HC perpendicular too

Does that mean that angleCHF = 90?
Your writing is terrible!
AB = 9 and EF = 4?

Not important but why is there no point G (you jumped from F to H!)

 

[I like Serena]

what is the length x? (FH and HC perpendicular too, which I missed to write)
I am totally stuck can not make any progress on this question. Answer should be 5. I don't know how to obtain it

Hint: Which triangles are similar to each other?
(Two triangles are similar if they have 2 angles in common.)

 

[Wilmer]

Once you get Klaas' hint, you should "see" that x = 4 * CF / BF