Предмет: Геометрия, автор: BIT322

внутри равностороннего треугольника ABC отмечена точка D такая что угол BAD равен углу BCD=15 градусам. Найдите угол ADC

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Автор ответа: shanadya

Треугольник равносторонний=> угол DAC= угол DCA= 45 (60-15)
180-(45*2)=90

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