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Yes. It can't be done.
The only restrictions are CB (and AB) <25 (and related by Pythagoras' thm)
CE (and FE) <30 (and related by Pythagoras' thm)
[MATH]\underline{\tfrac{4}{3}CE=CD}<40\\ \underline{\tfrac{CD}{CB}=\tan 62}[/MATH]You can have any number of different triangles CFE, with different areas.

You could of course write the area of CFE in terms e.g. of CD.
 
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