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Прямокутний трикутник ABC (ZABC = 90°) є осноВОЮ прямої призми АВСА1В1С1 Площина, яка проходить через пряму AC, утворює з площиною основи призми кут в і перетинає ребро ВВ1 у точці D. Знайдіть площу утвореного перерізу, якщо ZBAC = a, BD = a
Ответы
Ответ:
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Объяснение:
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