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  1. Take each of two sides, and square them- multiply them times themselves- 40x40, and 60 x 60. That will give you 1600 and 3600. Add them together- 5200. Find the square root of 5200- which is ABOUT 72.11. That is the diagonal- and how you use the Pythagorean theorem

    Take each of two sides, and square them- multiply them times
    themselves- 40×40, and 60 x 60. That will give you 1600 and 3600.
    Add them together- 5200. Find the square root of 5200- which is
    ABOUT 72.11. That is the diagonal- and how you use the Pythagorean
    theorem

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