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Math Help - Is it possible to draw a parallel line only using a ruler

  1. #1
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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. #2
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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. #3
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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. #4
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    Yes by using the angle at the top or bottom of your ruler.
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