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Homework Help: Check my homework problem please!

  1. Jan 20, 2006 #1
    The radius of the earth is 6.37X10^6 meters. Determine the volume of the earth to the correct number of sig figures.

    to find the volume I used 4/3 (3.14)(6.37x10^6)^3
    3.14(2.58x10^20) = 8.10x10^20
    4/3 or 1.33(8.10x10^20) =

    1.08x10^21m^3 ???
  2. jcsd
  3. Jan 20, 2006 #2


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    Homework Helper

    okay, why would you doubt your result?
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