∴∠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