Which statements regarding the diagram are true? Check all that apply.
A
∠XFG is an interior angle of ΔEFG.B
∠EFG is an interior angle of ΔEFG.C
∠FEZ is an exterior angle of ΔEFG.D
∠YGE is an exterior angle of ΔEFG.E
∠EGF and ∠FGY are supplementary angles.F
∠FEG and ∠FGE are supplementary angles.