Ответ:
так как DAE+EAC=DAC,. DAE=EAC
DAC=62°
BAE=BAC-EAC=180°-31°=149°
BAC=180°
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Ответ:
так как DAE+EAC=DAC,. DAE=EAC
DAC=62°
BAE=BAC-EAC=180°-31°=149°
BAC=180°