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Задачка по геометрии. треугольник ACB дано: угол ACB=90 градусов, CD перпендекулярен AB, BD=16см, CD=4см Найти AD AC ВС
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Предмет:
Математика -
Автор:
dottie - 5 лет назад
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Ответы 2
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спасибо
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Автор:
rosales - 5 лет назад
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0
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По теореме о пропорциональных отрезках в прямоугольном треугольнике CD²=AD*DB⇒AD=CD²/BD = 16/16=1.AC=√(CD²+AD²)= √17,CB=√(16²+4²)=√272=√(16*17)=4√17.
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Автор:
leonciokbdu - 5 лет назад
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0
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