Предмет: Геометрия, автор: Аноним

ребята зделайте пожалуйста с решением ​

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Автор ответа: 1brashka05
1

Ответ:

1) 50°

Объяснение:

110°+20°+50°=180°

С+В+А=180°

90°+40°+50°=180°

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