Someone please help me and elaborate

If the triangles are CONGRUENT their corresponding side lengths and angles will be equal

If the triangles were only SIMILAR (represented with this symbol: ~ ) then only the corresponding angles would be equal but the side lengths would only be proportional not equal.

In your problem, the triangles are CONGRUENT so the corresponding side lengths will be equal

With this being said, Segments JH and FE are corresponding and congruent. Thus they have equivalent lengths.
JH = FE
FE = 33ft
JH = FE = 33ft
JH = 33ft

JH = 33ft this is your answer.
I hope this helps :)
I can elaborate more in the comments if needed so please ask any questions regarding the concept I’d be more than happy to help.
And will you be able to mark this as brainliest please. I completely understand if u can’t.

I’m having a hard time understanding your question