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Ответ

Ответ дан
elena20092

L = 5м - длина наклонной

h = 2м - расстояние от точки до плоскости

Lпр = √(L² - h²) = √(25 - 4) = √21 ≈ 4,6 (м)

Ответ: √21 м или ≈4,6м

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