• Question: If the world was measured in centermeters how long would it be?

    Asked by anon-190787 to Brendan on 8 Nov 2018.
    • Photo: Brendan Marrinan

      Brendan Marrinan answered on 8 Nov 2018:

      Hi Michelle, Crikey that’s a tricky one. Long is an odd word to choose because the earth is almost a sphere, there are lots of ways to measure a sphere: you can measure from one point to another through the sphere (for example UK to Australia) this is called the diameter, which is 12,742km.
      12742km = 12,742,000m = 1,274,200,000cm = 12,742,000,000mm.

      I hope that helps

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