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algebra

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A cable 25 feet long runs from the top of a utility pole to a point on the ground 18 feet from the base of the pole. How tall is the utility pole?

  • algebra - ,

    Pythagorean Theorem:

    a^2 + b^2 = c^2
    18^2 + b^2 = 25^2
    324 + b^2 = 625
    b^2 = 625 - 324
    b^2 = 301
    b = 17.349

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