Предмет: Математика, автор: ameliyaarnaut60

Доповни речення звичайним дробом.
Якщо в книзі всього 45 сторінок, але Віктор вже прочитав 9 сторінок, тоді він прочитав

Ответы

Автор ответа: ujghfhghrb
1

Ответ:∠1=90°-67°=23° рассматриваем прямоугольный треугольник, который опирается на диаметр

∠2=∠1=23° равнобедренный треугольник

∠4=∠2+∠х=35° равнобедренный треугольник

∠х=35°-23°=12°

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