geometry

A cable 22 feet long runs from the top of a utility pole to a point on the ground 15 feet from the base of the pole. How tall is the utility pole?

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  1. set up a right triangle
    the base is 15, hypotenuse 22, and the height is x. solve for x.
    use the pythagorean theorum.
    a^2+b^2=c^2
    15^2+x^2=22^2
    225+x^2=484
    x^2=259
    x=16.09 feet

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  2. This looks like a problem for the Pythagorean Theorem.

    a^2 + b^2 = c^2

    15^2 + b^2 = 22^2
    225 + b^2 = 484
    b^2 = 484 - 225
    b^2 = 259
    b = 16.09 feet

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    Ms. Sue

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