Respuesta :

Answer:

d

Step-by-step explanation:

Since DF = EF then the triangle is isosceles with base angle being congruent, that is

∠ D = ∠ E , then

∠ D = [tex]\frac{180-133}{2}[/tex] = [tex]\frac{47}{2}[/tex] = 23.5°

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