Предмет: Геометрия, автор: maksimkasoyns

Докажите что прямые a и b параллельны,если угол 8=155 угол 1=35

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Автор ответа: toshik8

∠6 = ∠8 = 155° так как они вертикальные,
∠6 + ∠1 = 155° + 35° = 190°, а эти углы - внутренние односторонние при пересечении прямых а и b секущей с, ⇒ a║b

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