Предмет: Математика, автор: lera42513

решите пожалуйста!!!! СРОЧНО!!!!!!!!!!!!!​

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Ответы

Автор ответа: bel72777
0

Ответ:

80

Пошаговое объяснение:

∠ABM=120°; ∠DBM=140°

Развёрнутый угол ABC=180°

∠DBM=∠ABM+∠DBM-∠ABC=120°+140°-180°=80°

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