Fill in the missing statement and reason in the proof of the Alternate Exterior Angles Theorem.
It is given that AB is parallel to CD and points E, G, H, and F are collinear.
congruent by the
by the Vertical Angles Theorem. AGF and CD are corresponding and congruent according to the Corresponding Angles Theorem. Finally, AGF and CHF are
EGB and EGA are congruent; Transitive Property of Equality
EGB and AGF are congruent; Transitive Property of Equality
EGB and AGF are congruent; Subtraction Property
EGB and EGA are congruent; Subtraction Property
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