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Trigonometry

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A standard doorway measures 6 feet 8 inches by 3 feet. What is the largest dimension that will fit through the doorway without bending?

  • Trigonometry -

    You are looking for the diagonal, let it by x

    x^2 = (20/3)^2 + 3^2 = 481/9
    x =√(481/9) = appr 7.31 ft
    or appr 7 feet 3 inches

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