作业帮 > 数学 > 作业

第17题题 求解答附带解释Thank you very much.

来源：学生作业帮 编辑：神马作文网作业帮 分类：数学作业 时间：2024/11/19 05:22:57
第17题题 求解答附带解释Thank you very much.

 

第17题题 求解答附带解释Thank you very much.
因为 ∠AOC=1/5 ∠AOB
所以∠BOC=4/5 ∠AOB
因为OD平分∠BOC, 所以∠COD= 2/5 ∠AOB
因为 ∠COD 与 ∠AOC 互余,所以∠COD + ∠AOC= 90°
3/5 ∠AOB=90°
∠AOB=150°
求解答Thank you very much 请朋友解答.thank you very much. Thank you very much 英语求翻译 Thank you very much! Thank you very much, you,much,thank,very Thank you very much. Thank you very much thank you very much~ 求解答Thank you very much for (tell) me the truth thank you very much thanks 英语翻译Thank you very much