Number of angles less than 180° in Fig. 2.17 is ______and their names – InterviewSolution

1.	Number of angles less than 180° in Fig. 2.17 is ______and their names are ______.
Answer» 12; ∠OAB, ∠OBA, ∠OAC, ∠OCA, ∠OCD, ∠ODC, ∠AOB, vAOC, ∠COD, ∠DOB, ∠BAC, ∠ACD

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