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Параллельные прямые c и b пересечены двумя параллельными секущими AB и CD, причём A и C принадлежат прямой c, B и D- прямой b. Докажите, что AB= CD
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Предмет:
Алгебра -
Автор:
cristianwells - 5 лет назад
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Ответы 1
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Если А и С прин прямой с, а В и Д прямов д, то АВСД параллелограм и это значит что АВ=СД.
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Автор:
biscuithenderson - 5 лет назад
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