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Thread: I understand Pythagorean Theorem ok, but can't figure this out

  1. #1
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    I understand Pythagorean Theorem ok, but can't figure this out

    I understand Pythagorean Theorem ok, but can't figure this out-thumbnail-1.jpegI understand Pythagorean Theorem ok, but can't figure this out-thumbnail.jpeg

    The first picture shows the answers. I don't understand how they calculated "O" to be 39. I can't see how the given 63 and 24 lengths would give you the missing length of "O". I understand the formulas, but I must be missing something else.
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  2. #2
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    Re: I understand Pythagorean Theorem ok, but can't figure this out

    They cheated by making the angle between TR and the 63" piece 45 degrees without really labelling it.

    This means that $O+24=63,~O=39$
    Thanks from topsquark and HallsofIvy
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