Ответ:
∠A=70°
∠C=80°
∠OAC=∠A/2=35°
∠OCA=∠C/2=40°
∠OAC+∠OCA+∠AOC=180°
∠AOC=180°-75°
∠AOC=105°
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Ответ:
∠A=70°
∠C=80°
∠OAC=∠A/2=35°
∠OCA=∠C/2=40°
∠OAC+∠OCA+∠AOC=180°
∠AOC=180°-75°
∠AOC=105°