Answer:
B) 28°
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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