Предмет: Геометрия, автор: sawanka14

Найдите синус угла ABC,изображенного на рисунке 113

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Ответы

Автор ответа: 5SashaRyskin5

Я увидел, что АВ перпендикулярно ВС (клеточка пересечена
диагональю под 45'),
значит, угол АВС=90'. А синус 90'=1.

Ответ: sin 90'=1.

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