∴∠BAC =∞∠ACD (two straight lines are parallel and the internal dislocation angles are equal)
∫AE‖CD
∴∠EAC =∞∠ACF (two straight lines are parallel and the internal dislocation angles are equal)
∴∠BAC-EAC=∠ACD-ACF
∠BAE=∠DCF=28