Предмет: Геометрия, автор: Аноним

Плиз помогите срочно!!!!!!

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Автор ответа: bogdanganzara

0

Ответ:кут 1+кут2 =180° так як суміжні

Кут 1=100° а кут2=80°а кути 2 і 3 відповідні а якщо кути відповідно рівні то прямі паралельні

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