algebra

An airplane flies from City A in a straight line to City B, which is 70 kilometers north and 140 kilometers west of City A. How far does the plane fly?

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  1. This looks like a problem for Pythagoras.

    a^2 + b^2 = c^2

    70^2 + 140^2 = c^2

    4,900 + 19,600 = c^2

    24,500 = c^2

    156.52 = c

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    Ms. Sue
  2. An airplane flies from City A in a straight line to City B, which is 60 kilometers north and 180 kilometers west of City A. How far dos the plane fly? (Round your answer to the nearest
    kilometer.)
    km

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