Предмет: Геометрия, автор: anya0574

Вычислите длину гипотенузы треугольника СDE

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Ответы

Автор ответа: madlyangel

1

угол CDE = 180-120=60°

угол DCE = 180-90-60=30°

Катет лежащий напротив угла 30° равен половине гипотенузы

CE=2×DE=2×7=14 (см)

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