Предмет: Геометрия, автор: Schokk98

в тупоугольном треугольнике сумма острых углов равна 75 чему равен внешний угол треугольника при вершине тупого угла

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Автор ответа: EpicArctic

Внешний угол треугольника равен сумме двух углов треугольника, не смежных с ним,значит равен 75 градусов.

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