75度或105度
若OE与OF在CD的同侧,则有∠EOF=90°-∠DOF=15°,可知∠AOE=∠AOF+∠EOF=90°+15°=105°
若OE与OF在CD的异侧,则有∠AOD=90°-∠DOF=15°,可知可知∠AOE=90°-∠AOD=75°
75度或105度
若OE与OF在CD的同侧,则有∠EOF=90°-∠DOF=15°,可知∠AOE=∠AOF+∠EOF=90°+15°=105°
若OE与OF在CD的异侧,则有∠AOD=90°-∠DOF=15°,可知可知∠AOE=90°-∠AOD=75°