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Высоты BB1 и CC1 треугольника ABC пересекаются в точке H
(рис. 37). При каком значении k угол A равен 30 ? (Вторая лемма о высотах)
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Геометрия -
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mclaughlin - 5 лет назад
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Ответы 1
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Высоты BB1 и CC1 треугольника ABC пересекаются в точке H(рис. 37). При каком значении k угол A равен 30 ? (Вторая лемма о высотах)И при чем тут вторая лемма?
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Автор:
basilf6s4 - 5 лет назад
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