已知∠AOB=40°，过点O引射线OC，若∠AOC：∠COB=3：5，且OD平分∠AOB，则∠COD=_1．_刷题宝

题干

已知∠AOB=40°，过点O引射线OC，若∠AOC：∠COB=3：5，且OD平分∠AOB，则∠COD=____．

上一题下一题 0.0难度选择题更新时间:2018-07-07 05:48:34

答案(点此获取答案解析）

5°或80°

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