Respuesta :

Answer:

B) 28°

Step-by-step explanation:

By part whole postulate,

m<EFG = m<EFK + m<KFG

plug in values of all angles,

138° = 9x+11+3x-5

12x+6=138

12x=138-6

12x=132

x=132/12

x=11

m<KFG = 3x-5 = 3*11-5 = 33-5 = 28°

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