EFGH is a trapezium; FHG is an isosceles triangle with FH = HG.<br><br>
&bull; In isosceles triangle FHG, base angles are equal: \( \angle \)HFG = \( \angle \)HGF.<br>
&bull; From the diagram, \( \angle \)FHG = 94&deg; (given vertex angle).<br>
&bull; Base angles: (180&deg; &minus; 94&deg;) &divide; 2 = 43&deg; each.<br>
&bull; So \( \angle \)HGF = 43&deg;.<br>
&bull; In trapezium EFGH, EF \( \parallel \) HG, so \( \angle \)EFN and \( \angle \)HGF are alternate interior angles.<br>
&bull; \( \angle \)EFN = \( \angle \)HGF = 43&deg;.<br><br>
Final Answer: 43&deg;