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