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Thread: Is it possible to draw a parallel line only using a ruler

  1. February 9th 2010, 12:23 AM #1
    simplependulum
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    Is it possible to draw a parallel line only using a ruler

    There are three points A , B , C , they are not collinear .

    Can we draw a straight line which passes through A and is parallel to line BC using a rule without a scale ?

    I am curious about this problem .

    Is it possible ? .. I don't think it is . There is a big limitation !
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  2. February 9th 2010, 01:11 AM #2
    Prove It
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    Quote Originally Posted by simplependulum View Post
    There are three points A , B , C , they are not collinear .

    Can we draw a straight line which passes through A and is parallel to line BC using a rule without a scale ?

    I am curious about this problem .

    Is it possible ? .. I don't think it is . There is a big limitation !
    Are you using a ruler with measurements or just a straight edge?
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  3. February 9th 2010, 04:57 AM #3
    simplependulum
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    Quote Originally Posted by Prove It View Post
    Are you using a ruler with measurements or just a straight edge?
    Just a straight edge for us to draw straight lines .
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  4. February 9th 2010, 06:45 AM #4
    Bwts
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    Yes by using the angle at the top or bottom of your ruler.
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