Предмет: Геометрия, автор: Julija245

в треугольнике АВС угол А равен 46 градусов, внешний угол при вершине В равен 115 градусов. найдите градусную меру угла С.

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Автор ответа: надежда757

внешний угол треугольника равен сумме двух углов,НЕ смежных с ним,следовательно

115 градусов - 46 градусов = 69 градусов - это и есть угол С

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