BOC300的精選

已知線OA,由O點再引線OB、OC,使∠AOB=600,∠BOC=300,則∠AOC的度數是

2021-01-10

問題詳情：已知*線OA,由O點再引*線OB、OC,使∠AOB=600,∠BOC=300,則∠AOC的度數是______.【回答】900或300知識點：角題型：填空題...