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Math Help - parallelepiped diagonal

  1. #1
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    parallelepiped diagonal

    I haven't been able to solve this problem for the last 3 months. Now I'm surrendering it to the thinkers out there.

    Find the length of the diagonal of a rectangular parallelepiped of dimensions 6 m by 8 m by 10 m ?

    I may be getting the other diagonal of 14.68 m but the book says the correct answer is 14.14 m.
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  2. #2
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    Quote Originally Posted by killykilly View Post
    I haven't been able to solve this problem for the last 3 months. Now I'm surrendering it to the thinkers out there.

    Find the length of the diagonal of a rectangular parallelepiped of dimensions 6 m by 8 m by 10 m ?

    I may be getting the other diagonal of 14.68 m but the book says the correct answer is 14.14 m.
    Dear killykilly,

    Length of the diagonal= \sqrt{6^2+8^2+10^2}=\sqrt{200}=14.14m

    The answer of the book is correct.
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