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A 10 foot ladder is placed against a vertical wall of a building, with the bottom of the ladder standing on level ground 8 feet from the base of the building. How high up the wall does the ladder reach.

  • math -

    a^2 + b^2 = c^2

    8^2 + b^2 = 10^2

    64 + b^2 = 100

    b^2 = 36

    b = 6

    The ladder reaches 8 feet.

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