Ответ:
∠СNM=2×∠QNM=2×30=60°
∠NMC=2×∠QMC=40×2=80°
∠NCM=180°-∠CNM-∠NMC=180-60-80=40°
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Ответ:
∠СNM=2×∠QNM=2×30=60°
∠NMC=2×∠QMC=40×2=80°
∠NCM=180°-∠CNM-∠NMC=180-60-80=40°