Предмет: Геометрия, автор: ZDon

Угол A треугольника ABC равен 60∘, а угол B равен 77∘. На продолжении стороны AC за точку A выбрана такая точка D, что AB+AD=AC. Найдите ∠DBC.

Simba2017: 77+17=94

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Автор ответа: Simba2017

36

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