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Копія Задача про бісектриси сусідніх …
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Копія Використання векторів
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Копія Зображення паралелепіпеда
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Копія Зображення чотирикутної піраміди
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Копія Зображення трикутної піраміди
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Копія Зображення чотриркутної призми
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Копія Зображення правильної трикутної…
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Копія Зображення правильної трикутної…
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Копія Зображення правильної п'ятикутн…
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Копія Правильна п'ятикутна піраміда
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Копія Зображення ікосаедра
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Копія Зображення октаедра
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