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1. Adjacent, complementary, vertical, or supplementary
2. 65, 55, 120, 125, 115, or 60
3. EDF, ABF, EFD, or ADE

1. Adjacent, complementary, vertical, or supplementary 2. 65, 55, 120, 125, 115, or 60 3. EDF, ABF, EFD, or ADE class=

Answer :

mreijepatmat
1) ABF & EBD ARE SUPPLEMENTARY ANFLES (ABF + EBD =180)
2) FED=?. Note that FED=GEC=(16x-8).
Now in Triangle FED, the relation is (16x-8) + 35 + (2x+9) =180
hence x=8 & DEF=120


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