Question

如图,直线AB与CD相较于0,OE⊥AB,OF⊥CD

Answer 1

1、∠DOE 、∠BOF

2、∠AOE=90°

∠FOC=90°

∴∠AOE+∠FOC=180°

∴∠AOC+∠EOF=180°

∵∠AOC=1/4∠EOF

∴∠EOF+1/4∠EOF=180°

∴∠EOF=144°

∴∠AOC=36°