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Math Help - USing a ruler?

  1. #1
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    USing a ruler?

    OK so this is kinda embarrassing but anyway, when measuring with a ruler do you start at the CM or at 1?

    I am not sure if it is different, via countries but I am in the UK.
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  2. #2
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    start at zero.
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  3. #3
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    Quote Originally Posted by Mathsworld View Post
    OK so this is kinda embarrassing but anyway, when measuring with a ruler do you start at the CM or at 1?

    I am not sure if it is different, via countries but I am in the UK.
    Quote Originally Posted by SpringFan25 View Post
    start at zero.
    Depends on the ruler. The first marking on the ruler represents the starting point.

    It doesn't really make a difference though - you could always start at 1, and then whatever you measure, take 1 away from the answer.
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  4. #4
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    In some rulers we should start with 1 also
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  5. #5
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    im amazed. why do companies produce rulers like that? is it a historic thing?
    Last edited by SpringFan25; June 2nd 2011 at 03:30 AM.
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  6. #6
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    ignore the "numbers", or use a ruler that has none ...

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  7. #7
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    I too am in the UK and my ruler also has CM at the start instead of 0, so yes start at the CM. Remember no question should make you feel embarrassed its when you don't ask and make the mistake that you should feel embarrassed. ;-)
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