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to estimate the height of a tree, Dave stands in the shadow of the tree so that his shadow and the tree's shadow end at the same point. Dave is 6 feet 4 inches tall and his shadow is 15 feet long. If he is standing 66 feet away from the tree, what is the height of this tree?

  • geometrY -

    See the last picture at the bottom of this web page (for a pic of this exact problem).

    Using ratios,
    Tree height = T
    15/66 = 6.33/T
    15T = 512.73
    T = 34.182
    T = 34.182

  • geometrY -

    I think you did something wrong

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