Предмет: Геометрия, автор: pro100drug83

2. Докажите, что прямые пиќ на рисунке параллельны, если 22 = 21.​

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Автор ответа: olgaua64
1

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Пояснення:

так как углы 1 и 2 являются внешними накрестлежащими, то из их равенства следует, что n||k

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